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Finding the Fourth Proportional to 5,917.73, 8,878.10 and 2,220.21

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Solution

The fourth proportional to 5,917.73, 8,878.10 and 2,220.21 is: 3,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,917.73 : 8,878.10 = 2,220.21 : x
  2. Step 2: Convert to fraction form
    5,917.73/8,878.10 = 2,220.21/x
  3. Step 3: Cross multiply
    5,917.73x = 8,878.10 × 2,220.21
  4. Step 4: Simplify right side
    5,917.73x = 19,711,235.30
  5. Step 5: Solve for x
    x = 19,711,235.30/5,917.73
  6. Step 6: Final answer
    x = 3,330.88

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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.