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Finding the Fourth Proportional to 29,691.99, 40,973.19 and 16,260.57

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Solution

The fourth proportional to 29,691.99, 40,973.19 and 16,260.57 is: 22,438.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,691.99 : 40,973.19 = 16,260.57 : x
  2. Step 2: Convert to fraction form
    29,691.99/40,973.19 = 16,260.57/x
  3. Step 3: Cross multiply
    29,691.99x = 40,973.19 × 16,260.57
  4. Step 4: Simplify right side
    29,691.99x = 666,247,424.12
  5. Step 5: Solve for x
    x = 666,247,424.12/29,691.99
  6. Step 6: Final answer
    x = 22,438.62

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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.