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Finding the Fourth Proportional to 5,881.33, 8,112.54 and 3,489.61

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Solution

The fourth proportional to 5,881.33, 8,112.54 and 3,489.61 is: 4,813.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,881.33 : 8,112.54 = 3,489.61 : x
  2. Step 2: Convert to fraction form
    5,881.33/8,112.54 = 3,489.61/x
  3. Step 3: Cross multiply
    5,881.33x = 8,112.54 × 3,489.61
  4. Step 4: Simplify right side
    5,881.33x = 28,309,600.71
  5. Step 5: Solve for x
    x = 28,309,600.71/5,881.33
  6. Step 6: Final answer
    x = 4,813.47

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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.