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Finding the Fourth Proportional to 69,740.73, 96,242.31 and 37,909.53

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Solution

The fourth proportional to 69,740.73, 96,242.31 and 37,909.53 is: 52,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,740.73 : 96,242.31 = 37,909.53 : x
  2. Step 2: Convert to fraction form
    69,740.73/96,242.31 = 37,909.53/x
  3. Step 3: Cross multiply
    69,740.73x = 96,242.31 × 37,909.53
  4. Step 4: Simplify right side
    69,740.73x = 3,648,500,738.21
  5. Step 5: Solve for x
    x = 3,648,500,738.21/69,740.73
  6. Step 6: Final answer
    x = 52,315.21

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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.