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Finding the Fourth Proportional to 29,468.91, 40,672.70 and 16,723.28

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Solution

The fourth proportional to 29,468.91, 40,672.70 and 16,723.28 is: 23,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,468.91 : 40,672.70 = 16,723.28 : x
  2. Step 2: Convert to fraction form
    29,468.91/40,672.70 = 16,723.28/x
  3. Step 3: Cross multiply
    29,468.91x = 40,672.70 × 16,723.28
  4. Step 4: Simplify right side
    29,468.91x = 680,180,806.97
  5. Step 5: Solve for x
    x = 680,180,806.97/29,468.91
  6. Step 6: Final answer
    x = 23,081.30

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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.