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Finding the Fourth Proportional to 10,628.56, 15,935.03 and 5,360.97

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Solution

The fourth proportional to 10,628.56, 15,935.03 and 5,360.97 is: 8,037.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.56 : 15,935.03 = 5,360.97 : x
  2. Step 2: Convert to fraction form
    10,628.56/15,935.03 = 5,360.97/x
  3. Step 3: Cross multiply
    10,628.56x = 15,935.03 × 5,360.97
  4. Step 4: Simplify right side
    10,628.56x = 85,427,217.78
  5. Step 5: Solve for x
    x = 85,427,217.78/10,628.56
  6. Step 6: Final answer
    x = 8,037.52

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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.