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Finding the Fourth Proportional to 3,959.10, 5,950.80 and 3,886.20

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Solution

The fourth proportional to 3,959.10, 5,950.80 and 3,886.20 is: 5,841.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.10 : 5,950.80 = 3,886.20 : x
  2. Step 2: Convert to fraction form
    3,959.10/5,950.80 = 3,886.20/x
  3. Step 3: Cross multiply
    3,959.10x = 5,950.80 × 3,886.20
  4. Step 4: Simplify right side
    3,959.10x = 23,125,998.96
  5. Step 5: Solve for x
    x = 23,125,998.96/3,959.10
  6. Step 6: Final answer
    x = 5,841.23

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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.