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Finding the Fourth Proportional to 6,274.68, 8,656.38 and 4,179.48

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Solution

The fourth proportional to 6,274.68, 8,656.38 and 4,179.48 is: 5,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,274.68 : 8,656.38 = 4,179.48 : x
  2. Step 2: Convert to fraction form
    6,274.68/8,656.38 = 4,179.48/x
  3. Step 3: Cross multiply
    6,274.68x = 8,656.38 × 4,179.48
  4. Step 4: Simplify right side
    6,274.68x = 36,179,167.08
  5. Step 5: Solve for x
    x = 36,179,167.08/6,274.68
  6. Step 6: Final answer
    x = 5,765.90

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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.