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Finding the Fourth Proportional to 18,101.70, 27,152.55 and 17,496.90

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Solution

The fourth proportional to 18,101.70, 27,152.55 and 17,496.90 is: 26,245.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.70 : 27,152.55 = 17,496.90 : x
  2. Step 2: Convert to fraction form
    18,101.70/27,152.55 = 17,496.90/x
  3. Step 3: Cross multiply
    18,101.70x = 27,152.55 × 17,496.90
  4. Step 4: Simplify right side
    18,101.70x = 475,085,452.10
  5. Step 5: Solve for x
    x = 475,085,452.10/18,101.70
  6. Step 6: Final answer
    x = 26,245.35

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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.