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Finding the Fourth Proportional to 6,657.09, 9,186.62 and 3,672.88

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Solution

The fourth proportional to 6,657.09, 9,186.62 and 3,672.88 is: 5,068.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657.09 : 9,186.62 = 3,672.88 : x
  2. Step 2: Convert to fraction form
    6,657.09/9,186.62 = 3,672.88/x
  3. Step 3: Cross multiply
    6,657.09x = 9,186.62 × 3,672.88
  4. Step 4: Simplify right side
    6,657.09x = 33,741,311.53
  5. Step 5: Solve for x
    x = 33,741,311.53/6,657.09
  6. Step 6: Final answer
    x = 5,068.48

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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.