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Finding the Fourth Proportional to 6,308.60, 8,700.12 and 5,049.81

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Solution

The fourth proportional to 6,308.60, 8,700.12 and 5,049.81 is: 6,964.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,308.60 : 8,700.12 = 5,049.81 : x
  2. Step 2: Convert to fraction form
    6,308.60/8,700.12 = 5,049.81/x
  3. Step 3: Cross multiply
    6,308.60x = 8,700.12 × 5,049.81
  4. Step 4: Simplify right side
    6,308.60x = 43,933,952.98
  5. Step 5: Solve for x
    x = 43,933,952.98/6,308.60
  6. Step 6: Final answer
    x = 6,964.14

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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.