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Finding the Fourth Proportional to 17,882.91, 24,685.36 and 11,931.91

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Solution

The fourth proportional to 17,882.91, 24,685.36 and 11,931.91 is: 16,470.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,882.91 : 24,685.36 = 11,931.91 : x
  2. Step 2: Convert to fraction form
    17,882.91/24,685.36 = 11,931.91/x
  3. Step 3: Cross multiply
    17,882.91x = 24,685.36 × 11,931.91
  4. Step 4: Simplify right side
    17,882.91x = 294,543,402.29
  5. Step 5: Solve for x
    x = 294,543,402.29/17,882.91
  6. Step 6: Final answer
    x = 16,470.66

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1.5x scale

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.