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Finding the Fourth Proportional to 29,056.88, 40,098.12 and 17,120.72

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Solution

The fourth proportional to 29,056.88, 40,098.12 and 17,120.72 is: 23,626.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,056.88 : 40,098.12 = 17,120.72 : x
  2. Step 2: Convert to fraction form
    29,056.88/40,098.12 = 17,120.72/x
  3. Step 3: Cross multiply
    29,056.88x = 40,098.12 × 17,120.72
  4. Step 4: Simplify right side
    29,056.88x = 686,508,685.05
  5. Step 5: Solve for x
    x = 686,508,685.05/29,056.88
  6. Step 6: Final answer
    x = 23,626.37

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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.