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Finding the Fourth Proportional to 10,687.61, 16,031.43 and 2,896.41

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Solution

The fourth proportional to 10,687.61, 16,031.43 and 2,896.41 is: 4,344.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,687.61 : 16,031.43 = 2,896.41 : x
  2. Step 2: Convert to fraction form
    10,687.61/16,031.43 = 2,896.41/x
  3. Step 3: Cross multiply
    10,687.61x = 16,031.43 × 2,896.41
  4. Step 4: Simplify right side
    10,687.61x = 46,433,594.17
  5. Step 5: Solve for x
    x = 46,433,594.17/10,687.61
  6. Step 6: Final answer
    x = 4,344.62

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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.