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Finding the Fourth Proportional to 62,409.74, 86,125.44 and 34,115.42

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Solution

The fourth proportional to 62,409.74, 86,125.44 and 34,115.42 is: 47,079.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,409.74 : 86,125.44 = 34,115.42 : x
  2. Step 2: Convert to fraction form
    62,409.74/86,125.44 = 34,115.42/x
  3. Step 3: Cross multiply
    62,409.74x = 86,125.44 × 34,115.42
  4. Step 4: Simplify right side
    62,409.74x = 2,938,205,387.71
  5. Step 5: Solve for x
    x = 2,938,205,387.71/62,409.74
  6. Step 6: Final answer
    x = 47,079.28

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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.