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Finding the Fourth Proportional to 10,610.68, 15,916.28 and 2,819.68

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Solution

The fourth proportional to 10,610.68, 15,916.28 and 2,819.68 is: 4,229.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,610.68 : 15,916.28 = 2,819.68 : x
  2. Step 2: Convert to fraction form
    10,610.68/15,916.28 = 2,819.68/x
  3. Step 3: Cross multiply
    10,610.68x = 15,916.28 × 2,819.68
  4. Step 4: Simplify right side
    10,610.68x = 44,878,816.39
  5. Step 5: Solve for x
    x = 44,878,816.39/10,610.68
  6. Step 6: Final answer
    x = 4,229.59

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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.