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Finding the Fourth Proportional to 29,886.87, 44,819.75 and 8,821.28

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Solution

The fourth proportional to 29,886.87, 44,819.75 and 8,821.28 is: 13,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,886.87 : 44,819.75 = 8,821.28 : x
  2. Step 2: Convert to fraction form
    29,886.87/44,819.75 = 8,821.28/x
  3. Step 3: Cross multiply
    29,886.87x = 44,819.75 × 8,821.28
  4. Step 4: Simplify right side
    29,886.87x = 395,367,407.04
  5. Step 5: Solve for x
    x = 395,367,407.04/29,886.87
  6. Step 6: Final answer
    x = 13,228.80

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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.