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Finding the Fourth Proportional to 6,086.49, 9,129.80 and 1,926.42

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Solution

The fourth proportional to 6,086.49, 9,129.80 and 1,926.42 is: 2,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,086.49 : 9,129.80 = 1,926.42 : x
  2. Step 2: Convert to fraction form
    6,086.49/9,129.80 = 1,926.42/x
  3. Step 3: Cross multiply
    6,086.49x = 9,129.80 × 1,926.42
  4. Step 4: Simplify right side
    6,086.49x = 17,587,819.68
  5. Step 5: Solve for x
    x = 17,587,819.68/6,086.49
  6. Step 6: Final answer
    x = 2,889.65

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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.