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Finding the Fourth Proportional to 18,588.52, 27,882.78 and 9,840.52

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Solution

The fourth proportional to 18,588.52, 27,882.78 and 9,840.52 is: 14,760.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.52 : 27,882.78 = 9,840.52 : x
  2. Step 2: Convert to fraction form
    18,588.52/27,882.78 = 9,840.52/x
  3. Step 3: Cross multiply
    18,588.52x = 27,882.78 × 9,840.52
  4. Step 4: Simplify right side
    18,588.52x = 274,381,054.25
  5. Step 5: Solve for x
    x = 274,381,054.25/18,588.52
  6. Step 6: Final answer
    x = 14,760.78

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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.