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Finding the Fourth Proportional to 28,756.88, 43,135.16 and 22,924.88

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Solution

The fourth proportional to 28,756.88, 43,135.16 and 22,924.88 is: 34,387.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.88 : 43,135.16 = 22,924.88 : x
  2. Step 2: Convert to fraction form
    28,756.88/43,135.16 = 22,924.88/x
  3. Step 3: Cross multiply
    28,756.88x = 43,135.16 × 22,924.88
  4. Step 4: Simplify right side
    28,756.88x = 988,868,366.78
  5. Step 5: Solve for x
    x = 988,868,366.78/28,756.88
  6. Step 6: Final answer
    x = 34,387.19

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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.