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Finding the Fourth Proportional to 18,251.90, 27,377.86 and 4,400.90

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Solution

The fourth proportional to 18,251.90, 27,377.86 and 4,400.90 is: 6,601.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.90 : 27,377.86 = 4,400.90 : x
  2. Step 2: Convert to fraction form
    18,251.90/27,377.86 = 4,400.90/x
  3. Step 3: Cross multiply
    18,251.90x = 27,377.86 × 4,400.90
  4. Step 4: Simplify right side
    18,251.90x = 120,487,224.07
  5. Step 5: Solve for x
    x = 120,487,224.07/18,251.90
  6. Step 6: Final answer
    x = 6,601.35

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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.