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Finding the Fourth Proportional to 52,752.28, 72,799.43 and 28,878.88

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Solution

The fourth proportional to 52,752.28, 72,799.43 and 28,878.88 is: 39,853.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,752.28 : 72,799.43 = 28,878.88 : x
  2. Step 2: Convert to fraction form
    52,752.28/72,799.43 = 28,878.88/x
  3. Step 3: Cross multiply
    52,752.28x = 72,799.43 × 28,878.88
  4. Step 4: Simplify right side
    52,752.28x = 2,102,365,676.65
  5. Step 5: Solve for x
    x = 2,102,365,676.65/52,752.28
  6. Step 6: Final answer
    x = 39,853.55

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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.