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Finding the Fourth Proportional to 18,343.96, 27,502.14 and 8,981.08

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Solution

The fourth proportional to 18,343.96, 27,502.14 and 8,981.08 is: 13,464.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.96 : 27,502.14 = 8,981.08 : x
  2. Step 2: Convert to fraction form
    18,343.96/27,502.14 = 8,981.08/x
  3. Step 3: Cross multiply
    18,343.96x = 27,502.14 × 8,981.08
  4. Step 4: Simplify right side
    18,343.96x = 246,998,919.51
  5. Step 5: Solve for x
    x = 246,998,919.51/18,343.96
  6. Step 6: Final answer
    x = 13,464.86

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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.