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Finding the Fourth Proportional to 71,062.98, 98,068.32 and 38,799.24

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Solution

The fourth proportional to 71,062.98, 98,068.32 and 38,799.24 is: 53,543.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,062.98 : 98,068.32 = 38,799.24 : x
  2. Step 2: Convert to fraction form
    71,062.98/98,068.32 = 38,799.24/x
  3. Step 3: Cross multiply
    71,062.98x = 98,068.32 × 38,799.24
  4. Step 4: Simplify right side
    71,062.98x = 3,804,976,284.08
  5. Step 5: Solve for x
    x = 3,804,976,284.08/71,062.98
  6. Step 6: Final answer
    x = 53,543.72

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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.