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Finding the Fourth Proportional to 71,646.97, 98,864.96 and 41,427.71

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Solution

The fourth proportional to 71,646.97, 98,864.96 and 41,427.71 is: 57,165.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,646.97 : 98,864.96 = 41,427.71 : x
  2. Step 2: Convert to fraction form
    71,646.97/98,864.96 = 41,427.71/x
  3. Step 3: Cross multiply
    71,646.97x = 98,864.96 × 41,427.71
  4. Step 4: Simplify right side
    71,646.97x = 4,095,749,350.47
  5. Step 5: Solve for x
    x = 4,095,749,350.47/71,646.97
  6. Step 6: Final answer
    x = 57,165.70

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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.