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Finding the Fourth Proportional to 26,909.40, 40,356.90 and 9,377.40

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Solution

The fourth proportional to 26,909.40, 40,356.90 and 9,377.40 is: 14,063.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,909.40 : 40,356.90 = 9,377.40 : x
  2. Step 2: Convert to fraction form
    26,909.40/40,356.90 = 9,377.40/x
  3. Step 3: Cross multiply
    26,909.40x = 40,356.90 × 9,377.40
  4. Step 4: Simplify right side
    26,909.40x = 378,442,794.06
  5. Step 5: Solve for x
    x = 378,442,794.06/26,909.40
  6. Step 6: Final answer
    x = 14,063.59

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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.