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Finding the Fourth Proportional to 6,699.42, 9,245.61 and 3,867.66

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Solution

The fourth proportional to 6,699.42, 9,245.61 and 3,867.66 is: 5,337.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,699.42 : 9,245.61 = 3,867.66 : x
  2. Step 2: Convert to fraction form
    6,699.42/9,245.61 = 3,867.66/x
  3. Step 3: Cross multiply
    6,699.42x = 9,245.61 × 3,867.66
  4. Step 4: Simplify right side
    6,699.42x = 35,758,875.97
  5. Step 5: Solve for x
    x = 35,758,875.97/6,699.42
  6. Step 6: Final answer
    x = 5,337.61

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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.