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Finding the Fourth Proportional to 27,239.52, 40,856.22 and 7,520.88

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Solution

The fourth proportional to 27,239.52, 40,856.22 and 7,520.88 is: 11,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,239.52 : 40,856.22 = 7,520.88 : x
  2. Step 2: Convert to fraction form
    27,239.52/40,856.22 = 7,520.88/x
  3. Step 3: Cross multiply
    27,239.52x = 40,856.22 × 7,520.88
  4. Step 4: Simplify right side
    27,239.52x = 307,274,727.87
  5. Step 5: Solve for x
    x = 307,274,727.87/27,239.52
  6. Step 6: Final answer
    x = 11,280.48

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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.