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Finding the Fourth Proportional to 18,151.93, 27,200.16 and 7,616.24

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Solution

The fourth proportional to 18,151.93, 27,200.16 and 7,616.24 is: 11,412.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.93 : 27,200.16 = 7,616.24 : x
  2. Step 2: Convert to fraction form
    18,151.93/27,200.16 = 7,616.24/x
  3. Step 3: Cross multiply
    18,151.93x = 27,200.16 × 7,616.24
  4. Step 4: Simplify right side
    18,151.93x = 207,162,912.60
  5. Step 5: Solve for x
    x = 207,162,912.60/18,151.93
  6. Step 6: Final answer
    x = 11,412.72

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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.