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Finding the Fourth Proportional to 6,691.41, 9,236.05 and 4,039.00

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Solution

The fourth proportional to 6,691.41, 9,236.05 and 4,039.00 is: 5,574.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691.41 : 9,236.05 = 4,039.00 : x
  2. Step 2: Convert to fraction form
    6,691.41/9,236.05 = 4,039.00/x
  3. Step 3: Cross multiply
    6,691.41x = 9,236.05 × 4,039.00
  4. Step 4: Simplify right side
    6,691.41x = 37,304,372.76
  5. Step 5: Solve for x
    x = 37,304,372.76/6,691.41
  6. Step 6: Final answer
    x = 5,574.96

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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.