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Finding the Fourth Proportional to 40,993.76, 61,449.62 and 35,348.57

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Solution

The fourth proportional to 40,993.76, 61,449.62 and 35,348.57 is: 52,987.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,993.76 : 61,449.62 = 35,348.57 : x
  2. Step 2: Convert to fraction form
    40,993.76/61,449.62 = 35,348.57/x
  3. Step 3: Cross multiply
    40,993.76x = 61,449.62 × 35,348.57
  4. Step 4: Simplify right side
    40,993.76x = 2,172,155,886.80
  5. Step 5: Solve for x
    x = 2,172,155,886.80/40,993.76
  6. Step 6: Final answer
    x = 52,987.48

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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.