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Finding the Fourth Proportional to 73,789.38, 110,656.89 and 26,391.60

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Solution

The fourth proportional to 73,789.38, 110,656.89 and 26,391.60 is: 39,577.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,789.38 : 110,656.89 = 26,391.60 : x
  2. Step 2: Convert to fraction form
    73,789.38/110,656.89 = 26,391.60/x
  3. Step 3: Cross multiply
    73,789.38x = 110,656.89 × 26,391.60
  4. Step 4: Simplify right side
    73,789.38x = 2,920,412,378.12
  5. Step 5: Solve for x
    x = 2,920,412,378.12/73,789.38
  6. Step 6: Final answer
    x = 39,577.68

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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.