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Finding the Fourth Proportional to 62,207.60, 93,311.40 and 20,654.60

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Solution

The fourth proportional to 62,207.60, 93,311.40 and 20,654.60 is: 30,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,207.60 : 93,311.40 = 20,654.60 : x
  2. Step 2: Convert to fraction form
    62,207.60/93,311.40 = 20,654.60/x
  3. Step 3: Cross multiply
    62,207.60x = 93,311.40 × 20,654.60
  4. Step 4: Simplify right side
    62,207.60x = 1,927,309,642.44
  5. Step 5: Solve for x
    x = 1,927,309,642.44/62,207.60
  6. Step 6: Final answer
    x = 30,981.90

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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.