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Finding the Fourth Proportional to 62,509.39, 93,773.80 and 20,379.68

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Solution

The fourth proportional to 62,509.39, 93,773.80 and 20,379.68 is: 30,572.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,509.39 : 93,773.80 = 20,379.68 : x
  2. Step 2: Convert to fraction form
    62,509.39/93,773.80 = 20,379.68/x
  3. Step 3: Cross multiply
    62,509.39x = 93,773.80 × 20,379.68
  4. Step 4: Simplify right side
    62,509.39x = 1,911,080,472.12
  5. Step 5: Solve for x
    x = 1,911,080,472.12/62,509.39
  6. Step 6: Final answer
    x = 30,572.70

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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.