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Finding the Fourth Proportional to 47,537.80, 71,306.70 and 45,350.80

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Solution

The fourth proportional to 47,537.80, 71,306.70 and 45,350.80 is: 68,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,537.80 : 71,306.70 = 45,350.80 : x
  2. Step 2: Convert to fraction form
    47,537.80/71,306.70 = 45,350.80/x
  3. Step 3: Cross multiply
    47,537.80x = 71,306.70 × 45,350.80
  4. Step 4: Simplify right side
    47,537.80x = 3,233,815,890.36
  5. Step 5: Solve for x
    x = 3,233,815,890.36/47,537.80
  6. Step 6: Final answer
    x = 68,026.20

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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.