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Finding the Fourth Proportional to 28,873.87, 39,841.22 and 16,126.39

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Solution

The fourth proportional to 28,873.87, 39,841.22 and 16,126.39 is: 22,251.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,873.87 : 39,841.22 = 16,126.39 : x
  2. Step 2: Convert to fraction form
    28,873.87/39,841.22 = 16,126.39/x
  3. Step 3: Cross multiply
    28,873.87x = 39,841.22 × 16,126.39
  4. Step 4: Simplify right side
    28,873.87x = 642,495,051.20
  5. Step 5: Solve for x
    x = 642,495,051.20/28,873.87
  6. Step 6: Final answer
    x = 22,251.78

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1.5x scale

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.