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Finding the Fourth Proportional to 18,182.70, 27,252.45 and 7,652.70

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Solution

The fourth proportional to 18,182.70, 27,252.45 and 7,652.70 is: 11,469.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,182.70 : 27,252.45 = 7,652.70 : x
  2. Step 2: Convert to fraction form
    18,182.70/27,252.45 = 7,652.70/x
  3. Step 3: Cross multiply
    18,182.70x = 27,252.45 × 7,652.70
  4. Step 4: Simplify right side
    18,182.70x = 208,554,824.12
  5. Step 5: Solve for x
    x = 208,554,824.12/18,182.70
  6. Step 6: Final answer
    x = 11,469.96

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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.