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Finding the Fourth Proportional to 17,159.56, 25,731.12 and 8,384.20

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Solution

The fourth proportional to 17,159.56, 25,731.12 and 8,384.20 is: 12,572.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,159.56 : 25,731.12 = 8,384.20 : x
  2. Step 2: Convert to fraction form
    17,159.56/25,731.12 = 8,384.20/x
  3. Step 3: Cross multiply
    17,159.56x = 25,731.12 × 8,384.20
  4. Step 4: Simplify right side
    17,159.56x = 215,734,856.30
  5. Step 5: Solve for x
    x = 215,734,856.30/17,159.56
  6. Step 6: Final answer
    x = 12,572.28

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1.5x scale

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.