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Finding the Fourth Proportional to 18,583.70, 25,657.17 and 16,250.90

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Solution

The fourth proportional to 18,583.70, 25,657.17 and 16,250.90 is: 22,436.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,583.70 : 25,657.17 = 16,250.90 : x
  2. Step 2: Convert to fraction form
    18,583.70/25,657.17 = 16,250.90/x
  3. Step 3: Cross multiply
    18,583.70x = 25,657.17 × 16,250.90
  4. Step 4: Simplify right side
    18,583.70x = 416,952,103.95
  5. Step 5: Solve for x
    x = 416,952,103.95/18,583.70
  6. Step 6: Final answer
    x = 22,436.44

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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.