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Finding the Fourth Proportional to 18,656.84, 27,991.92 and 8,797.52

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Solution

The fourth proportional to 18,656.84, 27,991.92 and 8,797.52 is: 13,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,656.84 : 27,991.92 = 8,797.52 : x
  2. Step 2: Convert to fraction form
    18,656.84/27,991.92 = 8,797.52/x
  3. Step 3: Cross multiply
    18,656.84x = 27,991.92 × 8,797.52
  4. Step 4: Simplify right side
    18,656.84x = 246,259,476.04
  5. Step 5: Solve for x
    x = 246,259,476.04/18,656.84
  6. Step 6: Final answer
    x = 13,199.42

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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.