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Finding the Fourth Proportional to 18,605.92, 27,897.96 and 7,512.96

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Solution

The fourth proportional to 18,605.92, 27,897.96 and 7,512.96 is: 11,265.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.92 : 27,897.96 = 7,512.96 : x
  2. Step 2: Convert to fraction form
    18,605.92/27,897.96 = 7,512.96/x
  3. Step 3: Cross multiply
    18,605.92x = 27,897.96 × 7,512.96
  4. Step 4: Simplify right side
    18,605.92x = 209,596,257.56
  5. Step 5: Solve for x
    x = 209,596,257.56/18,605.92
  6. Step 6: Final answer
    x = 11,265.03

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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.