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Finding the Fourth Proportional to 6,876.51, 9,489.75 and 3,732.69

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Solution

The fourth proportional to 6,876.51, 9,489.75 and 3,732.69 is: 5,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.51 : 9,489.75 = 3,732.69 : x
  2. Step 2: Convert to fraction form
    6,876.51/9,489.75 = 3,732.69/x
  3. Step 3: Cross multiply
    6,876.51x = 9,489.75 × 3,732.69
  4. Step 4: Simplify right side
    6,876.51x = 35,422,294.93
  5. Step 5: Solve for x
    x = 35,422,294.93/6,876.51
  6. Step 6: Final answer
    x = 5,151.20

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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.