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Finding the Fourth Proportional to 18,498.24, 27,758.16 and 7,410.24

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Solution

The fourth proportional to 18,498.24, 27,758.16 and 7,410.24 is: 11,119.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.24 : 27,758.16 = 7,410.24 : x
  2. Step 2: Convert to fraction form
    18,498.24/27,758.16 = 7,410.24/x
  3. Step 3: Cross multiply
    18,498.24x = 27,758.16 × 7,410.24
  4. Step 4: Simplify right side
    18,498.24x = 205,694,627.56
  5. Step 5: Solve for x
    x = 205,694,627.56/18,498.24
  6. Step 6: Final answer
    x = 11,119.69

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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.