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Finding the Fourth Proportional to 26,502.80, 39,753.59 and 10,920.42

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Solution

The fourth proportional to 26,502.80, 39,753.59 and 10,920.42 is: 16,380.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,502.80 : 39,753.59 = 10,920.42 : x
  2. Step 2: Convert to fraction form
    26,502.80/39,753.59 = 10,920.42/x
  3. Step 3: Cross multiply
    26,502.80x = 39,753.59 × 10,920.42
  4. Step 4: Simplify right side
    26,502.80x = 434,125,844.71
  5. Step 5: Solve for x
    x = 434,125,844.71/26,502.80
  6. Step 6: Final answer
    x = 16,380.38

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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.