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Finding the Fourth Proportional to 38,565.80, 57,762.30 and 23,013.80

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Solution

The fourth proportional to 38,565.80, 57,762.30 and 23,013.80 is: 34,469.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,565.80 : 57,762.30 = 23,013.80 : x
  2. Step 2: Convert to fraction form
    38,565.80/57,762.30 = 23,013.80/x
  3. Step 3: Cross multiply
    38,565.80x = 57,762.30 × 23,013.80
  4. Step 4: Simplify right side
    38,565.80x = 1,329,330,019.74
  5. Step 5: Solve for x
    x = 1,329,330,019.74/38,565.80
  6. Step 6: Final answer
    x = 34,469.14

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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.