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Finding the Fourth Proportional to 10,361.59, 15,542.39 and 8,934.58

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Solution

The fourth proportional to 10,361.59, 15,542.39 and 8,934.58 is: 13,401.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,361.59 : 15,542.39 = 8,934.58 : x
  2. Step 2: Convert to fraction form
    10,361.59/15,542.39 = 8,934.58/x
  3. Step 3: Cross multiply
    10,361.59x = 15,542.39 × 8,934.58
  4. Step 4: Simplify right side
    10,361.59x = 138,864,726.85
  5. Step 5: Solve for x
    x = 138,864,726.85/10,361.59
  6. Step 6: Final answer
    x = 13,401.87

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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.