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Finding the Fourth Proportional to 3,387.74, 5,081.99 and 1,196.69

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Solution

The fourth proportional to 3,387.74, 5,081.99 and 1,196.69 is: 1,795.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.74 : 5,081.99 = 1,196.69 : x
  2. Step 2: Convert to fraction form
    3,387.74/5,081.99 = 1,196.69/x
  3. Step 3: Cross multiply
    3,387.74x = 5,081.99 × 1,196.69
  4. Step 4: Simplify right side
    3,387.74x = 6,081,535.22
  5. Step 5: Solve for x
    x = 6,081,535.22/3,387.74
  6. Step 6: Final answer
    x = 1,795.16

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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.