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Finding the Fourth Proportional to 29,161.71, 40,233.11 and 16,412.31

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Solution

The fourth proportional to 29,161.71, 40,233.11 and 16,412.31 is: 22,643.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,161.71 : 40,233.11 = 16,412.31 : x
  2. Step 2: Convert to fraction form
    29,161.71/40,233.11 = 16,412.31/x
  3. Step 3: Cross multiply
    29,161.71x = 40,233.11 × 16,412.31
  4. Step 4: Simplify right side
    29,161.71x = 660,318,191.52
  5. Step 5: Solve for x
    x = 660,318,191.52/29,161.71
  6. Step 6: Final answer
    x = 22,643.33

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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.