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Finding the Fourth Proportional to 29,392.15, 40,561.03 and 15,963.30

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Solution

The fourth proportional to 29,392.15, 40,561.03 and 15,963.30 is: 22,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,392.15 : 40,561.03 = 15,963.30 : x
  2. Step 2: Convert to fraction form
    29,392.15/40,561.03 = 15,963.30/x
  3. Step 3: Cross multiply
    29,392.15x = 40,561.03 × 15,963.30
  4. Step 4: Simplify right side
    29,392.15x = 647,487,890.20
  5. Step 5: Solve for x
    x = 647,487,890.20/29,392.15
  6. Step 6: Final answer
    x = 22,029.28

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