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Finding the Fourth Proportional to 7,856.03, 11,770.20 and 4,150.10

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Solution

The fourth proportional to 7,856.03, 11,770.20 and 4,150.10 is: 6,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.03 : 11,770.20 = 4,150.10 : x
  2. Step 2: Convert to fraction form
    7,856.03/11,770.20 = 4,150.10/x
  3. Step 3: Cross multiply
    7,856.03x = 11,770.20 × 4,150.10
  4. Step 4: Simplify right side
    7,856.03x = 48,847,448.17
  5. Step 5: Solve for x
    x = 48,847,448.17/7,856.03
  6. Step 6: Final answer
    x = 6,217.83

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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.