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Finding the Fourth Proportional to 15,776.68, 23,665.02 and 5,388.52

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Solution

The fourth proportional to 15,776.68, 23,665.02 and 5,388.52 is: 8,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,776.68 : 23,665.02 = 5,388.52 : x
  2. Step 2: Convert to fraction form
    15,776.68/23,665.02 = 5,388.52/x
  3. Step 3: Cross multiply
    15,776.68x = 23,665.02 × 5,388.52
  4. Step 4: Simplify right side
    15,776.68x = 127,519,433.57
  5. Step 5: Solve for x
    x = 127,519,433.57/15,776.68
  6. Step 6: Final answer
    x = 8,082.78

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Similar ratio
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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.