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Finding the Fourth Proportional to 10,687.62, 16,031.43 and 2,896.43

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Solution

The fourth proportional to 10,687.62, 16,031.43 and 2,896.43 is: 4,344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,687.62 : 16,031.43 = 2,896.43 : x
  2. Step 2: Convert to fraction form
    10,687.62/16,031.43 = 2,896.43/x
  3. Step 3: Cross multiply
    10,687.62x = 16,031.43 × 2,896.43
  4. Step 4: Simplify right side
    10,687.62x = 46,433,914.79
  5. Step 5: Solve for x
    x = 46,433,914.79/10,687.62
  6. Step 6: Final answer
    x = 4,344.65

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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.