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Finding the Fourth Proportional to 18,274.70, 27,414.14 and 9,966.87

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Solution

The fourth proportional to 18,274.70, 27,414.14 and 9,966.87 is: 14,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.70 : 27,414.14 = 9,966.87 : x
  2. Step 2: Convert to fraction form
    18,274.70/27,414.14 = 9,966.87/x
  3. Step 3: Cross multiply
    18,274.70x = 27,414.14 × 9,966.87
  4. Step 4: Simplify right side
    18,274.70x = 273,233,119.71
  5. Step 5: Solve for x
    x = 273,233,119.71/18,274.70
  6. Step 6: Final answer
    x = 14,951.45

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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.