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Finding the Fourth Proportional to 18,162.52, 27,243.84 and 5,014.60

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Solution

The fourth proportional to 18,162.52, 27,243.84 and 5,014.60 is: 7,521.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162.52 : 27,243.84 = 5,014.60 : x
  2. Step 2: Convert to fraction form
    18,162.52/27,243.84 = 5,014.60/x
  3. Step 3: Cross multiply
    18,162.52x = 27,243.84 × 5,014.60
  4. Step 4: Simplify right side
    18,162.52x = 136,616,960.06
  5. Step 5: Solve for x
    x = 136,616,960.06/18,162.52
  6. Step 6: Final answer
    x = 7,521.92

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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.