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Finding the Fourth Proportional to 18,061.14, 24,927.04 and 10,986.20

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Solution

The fourth proportional to 18,061.14, 24,927.04 and 10,986.20 is: 15,162.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,061.14 : 24,927.04 = 10,986.20 : x
  2. Step 2: Convert to fraction form
    18,061.14/24,927.04 = 10,986.20/x
  3. Step 3: Cross multiply
    18,061.14x = 24,927.04 × 10,986.20
  4. Step 4: Simplify right side
    18,061.14x = 273,853,446.85
  5. Step 5: Solve for x
    x = 273,853,446.85/18,061.14
  6. Step 6: Final answer
    x = 15,162.58

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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.