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Finding the Fourth Proportional to 6,778.74, 10,119.02 and 5,860.20

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Solution

The fourth proportional to 6,778.74, 10,119.02 and 5,860.20 is: 8,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,778.74 : 10,119.02 = 5,860.20 : x
  2. Step 2: Convert to fraction form
    6,778.74/10,119.02 = 5,860.20/x
  3. Step 3: Cross multiply
    6,778.74x = 10,119.02 × 5,860.20
  4. Step 4: Simplify right side
    6,778.74x = 59,299,451.70
  5. Step 5: Solve for x
    x = 59,299,451.70/6,778.74
  6. Step 6: Final answer
    x = 8,747.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.