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Finding the Fourth Proportional to 40,471.36, 60,665.52 and 15,505

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Solution

The fourth proportional to 40,471.36, 60,665.52 and 15,505 is: 23,241.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,471.36 : 60,665.52 = 15,505 : x
  2. Step 2: Convert to fraction form
    40,471.36/60,665.52 = 15,505/x
  3. Step 3: Cross multiply
    40,471.36x = 60,665.52 × 15,505
  4. Step 4: Simplify right side
    40,471.36x = 940,618,887.60
  5. Step 5: Solve for x
    x = 940,618,887.60/40,471.36
  6. Step 6: Final answer
    x = 23,241.59

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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.