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Finding the Fourth Proportional to 10,616.22, 15,919.61 and 4,371.12

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Solution

The fourth proportional to 10,616.22, 15,919.61 and 4,371.12 is: 6,554.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,616.22 : 15,919.61 = 4,371.12 : x
  2. Step 2: Convert to fraction form
    10,616.22/15,919.61 = 4,371.12/x
  3. Step 3: Cross multiply
    10,616.22x = 15,919.61 × 4,371.12
  4. Step 4: Simplify right side
    10,616.22x = 69,586,503.81
  5. Step 5: Solve for x
    x = 69,586,503.81/10,616.22
  6. Step 6: Final answer
    x = 6,554.73

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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.