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Finding the Fourth Proportional to 5,876.65, 8,818.42 and 2,181.43

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Solution

The fourth proportional to 5,876.65, 8,818.42 and 2,181.43 is: 3,273.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,876.65 : 8,818.42 = 2,181.43 : x
  2. Step 2: Convert to fraction form
    5,876.65/8,818.42 = 2,181.43/x
  3. Step 3: Cross multiply
    5,876.65x = 8,818.42 × 2,181.43
  4. Step 4: Simplify right side
    5,876.65x = 19,236,775.60
  5. Step 5: Solve for x
    x = 19,236,775.60/5,876.65
  6. Step 6: Final answer
    x = 3,273.42

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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.