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Finding the Fourth Proportional to 18,275.98, 27,414.12 and 15,626.32

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Solution

The fourth proportional to 18,275.98, 27,414.12 and 15,626.32 is: 23,439.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.98 : 27,414.12 = 15,626.32 : x
  2. Step 2: Convert to fraction form
    18,275.98/27,414.12 = 15,626.32/x
  3. Step 3: Cross multiply
    18,275.98x = 27,414.12 × 15,626.32
  4. Step 4: Simplify right side
    18,275.98x = 428,381,811.64
  5. Step 5: Solve for x
    x = 428,381,811.64/18,275.98
  6. Step 6: Final answer
    x = 23,439.61

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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.