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Finding the Fourth Proportional to 6,195.60, 8,539.92 and 4,867.20

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Solution

The fourth proportional to 6,195.60, 8,539.92 and 4,867.20 is: 6,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,195.60 : 8,539.92 = 4,867.20 : x
  2. Step 2: Convert to fraction form
    6,195.60/8,539.92 = 4,867.20/x
  3. Step 3: Cross multiply
    6,195.60x = 8,539.92 × 4,867.20
  4. Step 4: Simplify right side
    6,195.60x = 41,565,498.62
  5. Step 5: Solve for x
    x = 41,565,498.62/6,195.60
  6. Step 6: Final answer
    x = 6,708.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.