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Finding the Fourth Proportional to 26,375.38, 39,561.69 and 6,654.12

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Solution

The fourth proportional to 26,375.38, 39,561.69 and 6,654.12 is: 9,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,375.38 : 39,561.69 = 6,654.12 : x
  2. Step 2: Convert to fraction form
    26,375.38/39,561.69 = 6,654.12/x
  3. Step 3: Cross multiply
    26,375.38x = 39,561.69 × 6,654.12
  4. Step 4: Simplify right side
    26,375.38x = 263,248,232.66
  5. Step 5: Solve for x
    x = 263,248,232.66/26,375.38
  6. Step 6: Final answer
    x = 9,980.83

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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.