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Finding the Fourth Proportional to 29,662.78, 40,916.82 and 19,591.24

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Solution

The fourth proportional to 29,662.78, 40,916.82 and 19,591.24 is: 27,024.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,662.78 : 40,916.82 = 19,591.24 : x
  2. Step 2: Convert to fraction form
    29,662.78/40,916.82 = 19,591.24/x
  3. Step 3: Cross multiply
    29,662.78x = 40,916.82 × 19,591.24
  4. Step 4: Simplify right side
    29,662.78x = 801,611,240.66
  5. Step 5: Solve for x
    x = 801,611,240.66/29,662.78
  6. Step 6: Final answer
    x = 27,024.14

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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.