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Finding the Fourth Proportional to 39,407.38, 54,363.39 and 26,665.03

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Solution

The fourth proportional to 39,407.38, 54,363.39 and 26,665.03 is: 36,785.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,407.38 : 54,363.39 = 26,665.03 : x
  2. Step 2: Convert to fraction form
    39,407.38/54,363.39 = 26,665.03/x
  3. Step 3: Cross multiply
    39,407.38x = 54,363.39 × 26,665.03
  4. Step 4: Simplify right side
    39,407.38x = 1,449,601,425.25
  5. Step 5: Solve for x
    x = 1,449,601,425.25/39,407.38
  6. Step 6: Final answer
    x = 36,785.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.