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Finding the Fourth Proportional to 54,728.60, 75,525.55 and 29,578.10

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Solution

The fourth proportional to 54,728.60, 75,525.55 and 29,578.10 is: 40,817.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,728.60 : 75,525.55 = 29,578.10 : x
  2. Step 2: Convert to fraction form
    54,728.60/75,525.55 = 29,578.10/x
  3. Step 3: Cross multiply
    54,728.60x = 75,525.55 × 29,578.10
  4. Step 4: Simplify right side
    54,728.60x = 2,233,901,818.88
  5. Step 5: Solve for x
    x = 2,233,901,818.88/54,728.60
  6. Step 6: Final answer
    x = 40,817.82

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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.