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Finding the Fourth Proportional to 18,552.31, 27,830.05 and 10,238.06

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Solution

The fourth proportional to 18,552.31, 27,830.05 and 10,238.06 is: 15,357.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,552.31 : 27,830.05 = 10,238.06 : x
  2. Step 2: Convert to fraction form
    18,552.31/27,830.05 = 10,238.06/x
  3. Step 3: Cross multiply
    18,552.31x = 27,830.05 × 10,238.06
  4. Step 4: Simplify right side
    18,552.31x = 284,925,765.68
  5. Step 5: Solve for x
    x = 284,925,765.68/18,552.31
  6. Step 6: Final answer
    x = 15,357.97

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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.