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Finding the Fourth Proportional to 3,918.17, 5,877.27 and 996.46

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Solution

The fourth proportional to 3,918.17, 5,877.27 and 996.46 is: 1,494.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.17 : 5,877.27 = 996.46 : x
  2. Step 2: Convert to fraction form
    3,918.17/5,877.27 = 996.46/x
  3. Step 3: Cross multiply
    3,918.17x = 5,877.27 × 996.46
  4. Step 4: Simplify right side
    3,918.17x = 5,856,449.77
  5. Step 5: Solve for x
    x = 5,856,449.77/3,918.17
  6. Step 6: Final answer
    x = 1,494.69

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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.