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Finding the Fourth Proportional to 29,385.34, 40,551.64 and 15,956.48

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Solution

The fourth proportional to 29,385.34, 40,551.64 and 15,956.48 is: 22,019.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,385.34 : 40,551.64 = 15,956.48 : x
  2. Step 2: Convert to fraction form
    29,385.34/40,551.64 = 15,956.48/x
  3. Step 3: Cross multiply
    29,385.34x = 40,551.64 × 15,956.48
  4. Step 4: Simplify right side
    29,385.34x = 647,061,494.12
  5. Step 5: Solve for x
    x = 647,061,494.12/29,385.34
  6. Step 6: Final answer
    x = 22,019.88

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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.