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Finding the Fourth Proportional to 54,729.40, 75,526.40 and 29,578.90

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Solution

The fourth proportional to 54,729.40, 75,526.40 and 29,578.90 is: 40,818.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,729.40 : 75,526.40 = 29,578.90 : x
  2. Step 2: Convert to fraction form
    54,729.40/75,526.40 = 29,578.90/x
  3. Step 3: Cross multiply
    54,729.40x = 75,526.40 × 29,578.90
  4. Step 4: Simplify right side
    54,729.40x = 2,233,987,832.96
  5. Step 5: Solve for x
    x = 2,233,987,832.96/54,729.40
  6. Step 6: Final answer
    x = 40,818.79

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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.