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Finding the Fourth Proportional to 29,151.92, 43,690.95 and 18,617.87

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Solution

The fourth proportional to 29,151.92, 43,690.95 and 18,617.87 is: 27,903.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,151.92 : 43,690.95 = 18,617.87 : x
  2. Step 2: Convert to fraction form
    29,151.92/43,690.95 = 18,617.87/x
  3. Step 3: Cross multiply
    29,151.92x = 43,690.95 × 18,617.87
  4. Step 4: Simplify right side
    29,151.92x = 813,432,208.82
  5. Step 5: Solve for x
    x = 813,432,208.82/29,151.92
  6. Step 6: Final answer
    x = 27,903.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.