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Finding the Fourth Proportional to 29,405.31, 40,580.24 and 16,834.11

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Solution

The fourth proportional to 29,405.31, 40,580.24 and 16,834.11 is: 23,231.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,405.31 : 40,580.24 = 16,834.11 : x
  2. Step 2: Convert to fraction form
    29,405.31/40,580.24 = 16,834.11/x
  3. Step 3: Cross multiply
    29,405.31x = 40,580.24 × 16,834.11
  4. Step 4: Simplify right side
    29,405.31x = 683,132,139.82
  5. Step 5: Solve for x
    x = 683,132,139.82/29,405.31
  6. Step 6: Final answer
    x = 23,231.59

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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.