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Finding the Fourth Proportional to 18,775,868,693.40, 28,163,803,040.10 and 18,775,868,693.40

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Solution

The fourth proportional to 18,775,868,693.40, 28,163,803,040.10 and 18,775,868,693.40 is: 28,163,803,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775,868,693.40 : 28,163,803,040.10 = 18,775,868,693.40 : x
  2. Step 2: Convert to fraction form
    18,775,868,693.40/28,163,803,040.10 = 18,775,868,693.40/x
  3. Step 3: Cross multiply
    18,775,868,693.40x = 28,163,803,040.10 × 18,775,868,693.40
  4. Step 4: Simplify right side
    18,775,868,693.40x = 528,799,867,787,697,324,032
  5. Step 5: Solve for x
    x = 528,799,867,787,697,324,032/18,775,868,693.40
  6. Step 6: Final answer
    x = 28,163,803,040.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.