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Finding the Fourth Proportional to 62,397.60, 93,586.50 and 20,278.68

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Solution

The fourth proportional to 62,397.60, 93,586.50 and 20,278.68 is: 30,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,397.60 : 93,586.50 = 20,278.68 : x
  2. Step 2: Convert to fraction form
    62,397.60/93,586.50 = 20,278.68/x
  3. Step 3: Cross multiply
    62,397.60x = 93,586.50 × 20,278.68
  4. Step 4: Simplify right side
    62,397.60x = 1,897,810,685.82
  5. Step 5: Solve for x
    x = 1,897,810,685.82/62,397.60
  6. Step 6: Final answer
    x = 30,414.80

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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.