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Finding the Fourth Proportional to 18,922,769,969.55, 28,384,154,954.33 and 18,922,769,969.55

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Solution

The fourth proportional to 18,922,769,969.55, 28,384,154,954.33 and 18,922,769,969.55 is: 28,384,154,954.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922,769,969.55 : 28,384,154,954.33 = 18,922,769,969.55 : x
  2. Step 2: Convert to fraction form
    18,922,769,969.55/28,384,154,954.33 = 18,922,769,969.55/x
  3. Step 3: Cross multiply
    18,922,769,969.55x = 28,384,154,954.33 × 18,922,769,969.55
  4. Step 4: Simplify right side
    18,922,769,969.55x = 537,106,834,980,754,948,096
  5. Step 5: Solve for x
    x = 537,106,834,980,754,948,096/18,922,769,969.55
  6. Step 6: Final answer
    x = 28,384,154,954.33

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Double scale
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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.