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Finding the Fourth Proportional to 6,687.02, 9,245.70 and 5,856.65

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Solution

The fourth proportional to 6,687.02, 9,245.70 and 5,856.65 is: 8,097.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.02 : 9,245.70 = 5,856.65 : x
  2. Step 2: Convert to fraction form
    6,687.02/9,245.70 = 5,856.65/x
  3. Step 3: Cross multiply
    6,687.02x = 9,245.70 × 5,856.65
  4. Step 4: Simplify right side
    6,687.02x = 54,148,782.68
  5. Step 5: Solve for x
    x = 54,148,782.68/6,687.02
  6. Step 6: Final answer
    x = 8,097.59

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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.