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Finding the Fourth Proportional to 52,480.78, 72,425.42 and 29,823.61

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Solution

The fourth proportional to 52,480.78, 72,425.42 and 29,823.61 is: 41,157.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,480.78 : 72,425.42 = 29,823.61 : x
  2. Step 2: Convert to fraction form
    52,480.78/72,425.42 = 29,823.61/x
  3. Step 3: Cross multiply
    52,480.78x = 72,425.42 × 29,823.61
  4. Step 4: Simplify right side
    52,480.78x = 2,159,987,565.38
  5. Step 5: Solve for x
    x = 2,159,987,565.38/52,480.78
  6. Step 6: Final answer
    x = 41,157.69

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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.