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Finding the Fourth Proportional to 18,158.72, 27,247.84 and 16,836.80

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Solution

The fourth proportional to 18,158.72, 27,247.84 and 16,836.80 is: 25,264.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.72 : 27,247.84 = 16,836.80 : x
  2. Step 2: Convert to fraction form
    18,158.72/27,247.84 = 16,836.80/x
  3. Step 3: Cross multiply
    18,158.72x = 27,247.84 × 16,836.80
  4. Step 4: Simplify right side
    18,158.72x = 458,766,432.51
  5. Step 5: Solve for x
    x = 458,766,432.51/18,158.72
  6. Step 6: Final answer
    x = 25,264.25

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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.