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Finding the Fourth Proportional to 25,711.56, 35,479.62 and 16,279.92

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Solution

The fourth proportional to 25,711.56, 35,479.62 and 16,279.92 is: 22,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,711.56 : 35,479.62 = 16,279.92 : x
  2. Step 2: Convert to fraction form
    25,711.56/35,479.62 = 16,279.92/x
  3. Step 3: Cross multiply
    25,711.56x = 35,479.62 × 16,279.92
  4. Step 4: Simplify right side
    25,711.56x = 577,605,375.23
  5. Step 5: Solve for x
    x = 577,605,375.23/25,711.56
  6. Step 6: Final answer
    x = 22,464.81

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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.