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Finding the Fourth Proportional to 15,951.51, 23,932.17 and 8,165.79

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Solution

The fourth proportional to 15,951.51, 23,932.17 and 8,165.79 is: 12,251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,951.51 : 23,932.17 = 8,165.79 : x
  2. Step 2: Convert to fraction form
    15,951.51/23,932.17 = 8,165.79/x
  3. Step 3: Cross multiply
    15,951.51x = 23,932.17 × 8,165.79
  4. Step 4: Simplify right side
    15,951.51x = 195,425,074.46
  5. Step 5: Solve for x
    x = 195,425,074.46/15,951.51
  6. Step 6: Final answer
    x = 12,251.20

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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.