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Finding the Fourth Proportional to 18,402.66, 27,603.35 and 5,255.01

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Solution

The fourth proportional to 18,402.66, 27,603.35 and 5,255.01 is: 7,882.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.66 : 27,603.35 = 5,255.01 : x
  2. Step 2: Convert to fraction form
    18,402.66/27,603.35 = 5,255.01/x
  3. Step 3: Cross multiply
    18,402.66x = 27,603.35 × 5,255.01
  4. Step 4: Simplify right side
    18,402.66x = 145,055,873.71
  5. Step 5: Solve for x
    x = 145,055,873.71/18,402.66
  6. Step 6: Final answer
    x = 7,882.33

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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.