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Finding the Fourth Proportional to 6,657.58, 9,979.08 and 3,366.15

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Solution

The fourth proportional to 6,657.58, 9,979.08 and 3,366.15 is: 5,045.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657.58 : 9,979.08 = 3,366.15 : x
  2. Step 2: Convert to fraction form
    6,657.58/9,979.08 = 3,366.15/x
  3. Step 3: Cross multiply
    6,657.58x = 9,979.08 × 3,366.15
  4. Step 4: Simplify right side
    6,657.58x = 33,591,080.14
  5. Step 5: Solve for x
    x = 33,591,080.14/6,657.58
  6. Step 6: Final answer
    x = 5,045.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.