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Finding the Fourth Proportional to 71,066.38, 98,069.02 and 38,800.40

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Solution

The fourth proportional to 71,066.38, 98,069.02 and 38,800.40 is: 53,543.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,066.38 : 98,069.02 = 38,800.40 : x
  2. Step 2: Convert to fraction form
    71,066.38/98,069.02 = 38,800.40/x
  3. Step 3: Cross multiply
    71,066.38x = 98,069.02 × 38,800.40
  4. Step 4: Simplify right side
    71,066.38x = 3,805,117,203.61
  5. Step 5: Solve for x
    x = 3,805,117,203.61/71,066.38
  6. Step 6: Final answer
    x = 53,543.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.