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Finding the Fourth Proportional to 18,475.59, 27,730.67 and 9,126.17

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Solution

The fourth proportional to 18,475.59, 27,730.67 and 9,126.17 is: 13,697.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475.59 : 27,730.67 = 9,126.17 : x
  2. Step 2: Convert to fraction form
    18,475.59/27,730.67 = 9,126.17/x
  3. Step 3: Cross multiply
    18,475.59x = 27,730.67 × 9,126.17
  4. Step 4: Simplify right side
    18,475.59x = 253,074,624.35
  5. Step 5: Solve for x
    x = 253,074,624.35/18,475.59
  6. Step 6: Final answer
    x = 13,697.78

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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.