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Finding the Fourth Proportional to 2,874.17, 3,965.92 and 1,614.98

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Solution

The fourth proportional to 2,874.17, 3,965.92 and 1,614.98 is: 2,228.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.17 : 3,965.92 = 1,614.98 : x
  2. Step 2: Convert to fraction form
    2,874.17/3,965.92 = 1,614.98/x
  3. Step 3: Cross multiply
    2,874.17x = 3,965.92 × 1,614.98
  4. Step 4: Simplify right side
    2,874.17x = 6,404,881.48
  5. Step 5: Solve for x
    x = 6,404,881.48/2,874.17
  6. Step 6: Final answer
    x = 2,228.43

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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.