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Finding the Fourth Proportional to 2,913.62, 4,371.16 and 833.66

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Solution

The fourth proportional to 2,913.62, 4,371.16 and 833.66 is: 1,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.62 : 4,371.16 = 833.66 : x
  2. Step 2: Convert to fraction form
    2,913.62/4,371.16 = 833.66/x
  3. Step 3: Cross multiply
    2,913.62x = 4,371.16 × 833.66
  4. Step 4: Simplify right side
    2,913.62x = 3,644,061.25
  5. Step 5: Solve for x
    x = 3,644,061.25/2,913.62
  6. Step 6: Final answer
    x = 1,250.70

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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.