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Finding the Fourth Proportional to 29,672.68, 40,949.26 and 16,243.93

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Solution

The fourth proportional to 29,672.68, 40,949.26 and 16,243.93 is: 22,417.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,672.68 : 40,949.26 = 16,243.93 : x
  2. Step 2: Convert to fraction form
    29,672.68/40,949.26 = 16,243.93/x
  3. Step 3: Cross multiply
    29,672.68x = 40,949.26 × 16,243.93
  4. Step 4: Simplify right side
    29,672.68x = 665,176,912.99
  5. Step 5: Solve for x
    x = 665,176,912.99/29,672.68
  6. Step 6: Final answer
    x = 22,417.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.