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Finding the Fourth Proportional to 18,306.80, 25,264.95 and 10,350.44

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Solution

The fourth proportional to 18,306.80, 25,264.95 and 10,350.44 is: 14,284.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.80 : 25,264.95 = 10,350.44 : x
  2. Step 2: Convert to fraction form
    18,306.80/25,264.95 = 10,350.44/x
  3. Step 3: Cross multiply
    18,306.80x = 25,264.95 × 10,350.44
  4. Step 4: Simplify right side
    18,306.80x = 261,503,349.08
  5. Step 5: Solve for x
    x = 261,503,349.08/18,306.80
  6. Step 6: Final answer
    x = 14,284.49

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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.