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Finding the Fourth Proportional to 18,167.84, 27,251.48 and 5,019.92

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Solution

The fourth proportional to 18,167.84, 27,251.48 and 5,019.92 is: 7,529.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,167.84 : 27,251.48 = 5,019.92 : x
  2. Step 2: Convert to fraction form
    18,167.84/27,251.48 = 5,019.92/x
  3. Step 3: Cross multiply
    18,167.84x = 27,251.48 × 5,019.92
  4. Step 4: Simplify right side
    18,167.84x = 136,800,113.22
  5. Step 5: Solve for x
    x = 136,800,113.22/18,167.84
  6. Step 6: Final answer
    x = 7,529.80

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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.