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Finding the Fourth Proportional to 18,116.80, 27,175.20 and 17,460.70

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Solution

The fourth proportional to 18,116.80, 27,175.20 and 17,460.70 is: 26,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.80 : 27,175.20 = 17,460.70 : x
  2. Step 2: Convert to fraction form
    18,116.80/27,175.20 = 17,460.70/x
  3. Step 3: Cross multiply
    18,116.80x = 27,175.20 × 17,460.70
  4. Step 4: Simplify right side
    18,116.80x = 474,498,014.64
  5. Step 5: Solve for x
    x = 474,498,014.64/18,116.80
  6. Step 6: Final answer
    x = 26,191.05

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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.