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Finding the Fourth Proportional to 6,425.60, 8,867.21 and 3,593.21

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Solution

The fourth proportional to 6,425.60, 8,867.21 and 3,593.21 is: 4,958.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425.60 : 8,867.21 = 3,593.21 : x
  2. Step 2: Convert to fraction form
    6,425.60/8,867.21 = 3,593.21/x
  3. Step 3: Cross multiply
    6,425.60x = 8,867.21 × 3,593.21
  4. Step 4: Simplify right side
    6,425.60x = 31,861,685.34
  5. Step 5: Solve for x
    x = 31,861,685.34/6,425.60
  6. Step 6: Final answer
    x = 4,958.56

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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.