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Finding the Fourth Proportional to 18,162.40, 27,185.76 and 17,473.44

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Solution

The fourth proportional to 18,162.40, 27,185.76 and 17,473.44 is: 26,154.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162.40 : 27,185.76 = 17,473.44 : x
  2. Step 2: Convert to fraction form
    18,162.40/27,185.76 = 17,473.44/x
  3. Step 3: Cross multiply
    18,162.40x = 27,185.76 × 17,473.44
  4. Step 4: Simplify right side
    18,162.40x = 475,028,746.21
  5. Step 5: Solve for x
    x = 475,028,746.21/18,162.40
  6. Step 6: Final answer
    x = 26,154.51

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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.