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Finding the Fourth Proportional to 10,874.54, 16,319.12 and 3,949.04

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Solution

The fourth proportional to 10,874.54, 16,319.12 and 3,949.04 is: 5,926.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,874.54 : 16,319.12 = 3,949.04 : x
  2. Step 2: Convert to fraction form
    10,874.54/16,319.12 = 3,949.04/x
  3. Step 3: Cross multiply
    10,874.54x = 16,319.12 × 3,949.04
  4. Step 4: Simplify right side
    10,874.54x = 64,444,878.70
  5. Step 5: Solve for x
    x = 64,444,878.70/10,874.54
  6. Step 6: Final answer
    x = 5,926.22

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1.5x scale

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.