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Finding the Fourth Proportional to 29,000.81, 40,019.21 and 17,061.83

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Solution

The fourth proportional to 29,000.81, 40,019.21 and 17,061.83 is: 23,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,000.81 : 40,019.21 = 17,061.83 : x
  2. Step 2: Convert to fraction form
    29,000.81/40,019.21 = 17,061.83/x
  3. Step 3: Cross multiply
    29,000.81x = 40,019.21 × 17,061.83
  4. Step 4: Simplify right side
    29,000.81x = 682,800,672.35
  5. Step 5: Solve for x
    x = 682,800,672.35/29,000.81
  6. Step 6: Final answer
    x = 23,544.20

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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.