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Finding the Fourth Proportional to 29,908.70, 41,274.50 and 16,479.76

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Solution

The fourth proportional to 29,908.70, 41,274.50 and 16,479.76 is: 22,742.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,908.70 : 41,274.50 = 16,479.76 : x
  2. Step 2: Convert to fraction form
    29,908.70/41,274.50 = 16,479.76/x
  3. Step 3: Cross multiply
    29,908.70x = 41,274.50 × 16,479.76
  4. Step 4: Simplify right side
    29,908.70x = 680,193,854.12
  5. Step 5: Solve for x
    x = 680,193,854.12/29,908.70
  6. Step 6: Final answer
    x = 22,742.34

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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.