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Finding the Fourth Proportional to 27,041.52, 40,505.78 and 21,747.90

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Solution

The fourth proportional to 27,041.52, 40,505.78 and 21,747.90 is: 32,576.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,041.52 : 40,505.78 = 21,747.90 : x
  2. Step 2: Convert to fraction form
    27,041.52/40,505.78 = 21,747.90/x
  3. Step 3: Cross multiply
    27,041.52x = 40,505.78 × 21,747.90
  4. Step 4: Simplify right side
    27,041.52x = 880,915,652.86
  5. Step 5: Solve for x
    x = 880,915,652.86/27,041.52
  6. Step 6: Final answer
    x = 32,576.41

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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.