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Finding the Fourth Proportional to 55,689.39, 83,395.62 and 38,971.17

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Solution

The fourth proportional to 55,689.39, 83,395.62 and 38,971.17 is: 58,359.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,689.39 : 83,395.62 = 38,971.17 : x
  2. Step 2: Convert to fraction form
    55,689.39/83,395.62 = 38,971.17/x
  3. Step 3: Cross multiply
    55,689.39x = 83,395.62 × 38,971.17
  4. Step 4: Simplify right side
    55,689.39x = 3,250,024,884.28
  5. Step 5: Solve for x
    x = 3,250,024,884.28/55,689.39
  6. Step 6: Final answer
    x = 58,359.86

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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.