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Finding the Fourth Proportional to 42,002.40, 62,930.70 and 27,203.70

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Solution

The fourth proportional to 42,002.40, 62,930.70 and 27,203.70 is: 40,758.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,002.40 : 62,930.70 = 27,203.70 : x
  2. Step 2: Convert to fraction form
    42,002.40/62,930.70 = 27,203.70/x
  3. Step 3: Cross multiply
    42,002.40x = 62,930.70 × 27,203.70
  4. Step 4: Simplify right side
    42,002.40x = 1,711,947,883.59
  5. Step 5: Solve for x
    x = 1,711,947,883.59/42,002.40
  6. Step 6: Final answer
    x = 40,758.33

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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.