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Finding the Fourth Proportional to 15,158.71, 22,713.49 and 9,887.41

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Solution

The fourth proportional to 15,158.71, 22,713.49 and 9,887.41 is: 14,815.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,158.71 : 22,713.49 = 9,887.41 : x
  2. Step 2: Convert to fraction form
    15,158.71/22,713.49 = 9,887.41/x
  3. Step 3: Cross multiply
    15,158.71x = 22,713.49 × 9,887.41
  4. Step 4: Simplify right side
    15,158.71x = 224,577,588.16
  5. Step 5: Solve for x
    x = 224,577,588.16/15,158.71
  6. Step 6: Final answer
    x = 14,815.09

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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.