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Finding the Fourth Proportional to 27,462.40, 41,203.20 and 11,891.20

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Solution

The fourth proportional to 27,462.40, 41,203.20 and 11,891.20 is: 17,840.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,462.40 : 41,203.20 = 11,891.20 : x
  2. Step 2: Convert to fraction form
    27,462.40/41,203.20 = 11,891.20/x
  3. Step 3: Cross multiply
    27,462.40x = 41,203.20 × 11,891.20
  4. Step 4: Simplify right side
    27,462.40x = 489,955,491.84
  5. Step 5: Solve for x
    x = 489,955,491.84/27,462.40
  6. Step 6: Final answer
    x = 17,840.96

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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.