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Finding the Fourth Proportional to 29,463.88, 40,652.82 and 18,704.68

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Solution

The fourth proportional to 29,463.88, 40,652.82 and 18,704.68 is: 25,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,463.88 : 40,652.82 = 18,704.68 : x
  2. Step 2: Convert to fraction form
    29,463.88/40,652.82 = 18,704.68/x
  3. Step 3: Cross multiply
    29,463.88x = 40,652.82 × 18,704.68
  4. Step 4: Simplify right side
    29,463.88x = 760,397,989.20
  5. Step 5: Solve for x
    x = 760,397,989.20/29,463.88
  6. Step 6: Final answer
    x = 25,807.80

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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.