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Finding the Fourth Proportional to 40,642.87, 60,885.42 and 29,949.82

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Solution

The fourth proportional to 40,642.87, 60,885.42 and 29,949.82 is: 44,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,642.87 : 60,885.42 = 29,949.82 : x
  2. Step 2: Convert to fraction form
    40,642.87/60,885.42 = 29,949.82/x
  3. Step 3: Cross multiply
    40,642.87x = 60,885.42 × 29,949.82
  4. Step 4: Simplify right side
    40,642.87x = 1,823,507,217.41
  5. Step 5: Solve for x
    x = 1,823,507,217.41/40,642.87
  6. Step 6: Final answer
    x = 44,866.60

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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.