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Finding the Fourth Proportional to 18,593.40, 27,817.20 and 16,843.80

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Solution

The fourth proportional to 18,593.40, 27,817.20 and 16,843.80 is: 25,199.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,593.40 : 27,817.20 = 16,843.80 : x
  2. Step 2: Convert to fraction form
    18,593.40/27,817.20 = 16,843.80/x
  3. Step 3: Cross multiply
    18,593.40x = 27,817.20 × 16,843.80
  4. Step 4: Simplify right side
    18,593.40x = 468,547,353.36
  5. Step 5: Solve for x
    x = 468,547,353.36/18,593.40
  6. Step 6: Final answer
    x = 25,199.66

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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.