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Finding the Fourth Proportional to 17,041.76, 25,565.08 and 5,355.90

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Solution

The fourth proportional to 17,041.76, 25,565.08 and 5,355.90 is: 8,034.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,041.76 : 25,565.08 = 5,355.90 : x
  2. Step 2: Convert to fraction form
    17,041.76/25,565.08 = 5,355.90/x
  3. Step 3: Cross multiply
    17,041.76x = 25,565.08 × 5,355.90
  4. Step 4: Simplify right side
    17,041.76x = 136,924,011.97
  5. Step 5: Solve for x
    x = 136,924,011.97/17,041.76
  6. Step 6: Final answer
    x = 8,034.62

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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.