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Finding the Fourth Proportional to 62,943.71, 86,869.72 and 35,352.90

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Solution

The fourth proportional to 62,943.71, 86,869.72 and 35,352.90 is: 48,791.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,943.71 : 86,869.72 = 35,352.90 : x
  2. Step 2: Convert to fraction form
    62,943.71/86,869.72 = 35,352.90/x
  3. Step 3: Cross multiply
    62,943.71x = 86,869.72 × 35,352.90
  4. Step 4: Simplify right side
    62,943.71x = 3,071,096,347.42
  5. Step 5: Solve for x
    x = 3,071,096,347.42/62,943.71
  6. Step 6: Final answer
    x = 48,791.16

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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.