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Finding the Fourth Proportional to 42,003.90, 62,932.95 and 27,205.20

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Solution

The fourth proportional to 42,003.90, 62,932.95 and 27,205.20 is: 40,760.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,003.90 : 62,932.95 = 27,205.20 : x
  2. Step 2: Convert to fraction form
    42,003.90/62,932.95 = 27,205.20/x
  3. Step 3: Cross multiply
    42,003.90x = 62,932.95 × 27,205.20
  4. Step 4: Simplify right side
    42,003.90x = 1,712,103,491.34
  5. Step 5: Solve for x
    x = 1,712,103,491.34/42,003.90
  6. Step 6: Final answer
    x = 40,760.58

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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.