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Finding the Fourth Proportional to 40,903.70, 61,319.55 and 27,713.30

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Solution

The fourth proportional to 40,903.70, 61,319.55 and 27,713.30 is: 41,545.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,903.70 : 61,319.55 = 27,713.30 : x
  2. Step 2: Convert to fraction form
    40,903.70/61,319.55 = 27,713.30/x
  3. Step 3: Cross multiply
    40,903.70x = 61,319.55 × 27,713.30
  4. Step 4: Simplify right side
    40,903.70x = 1,699,367,085.02
  5. Step 5: Solve for x
    x = 1,699,367,085.02/40,903.70
  6. Step 6: Final answer
    x = 41,545.56

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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.