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Finding the Fourth Proportional to 62,487.72, 86,232.96 and 34,193.40

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Solution

The fourth proportional to 62,487.72, 86,232.96 and 34,193.40 is: 47,186.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,487.72 : 86,232.96 = 34,193.40 : x
  2. Step 2: Convert to fraction form
    62,487.72/86,232.96 = 34,193.40/x
  3. Step 3: Cross multiply
    62,487.72x = 86,232.96 × 34,193.40
  4. Step 4: Simplify right side
    62,487.72x = 2,948,598,094.46
  5. Step 5: Solve for x
    x = 2,948,598,094.46/62,487.72
  6. Step 6: Final answer
    x = 47,186.84

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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.