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Finding the Fourth Proportional to 27,331.76, 40,996.92 and 7,611.68

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Solution

The fourth proportional to 27,331.76, 40,996.92 and 7,611.68 is: 11,417.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,331.76 : 40,996.92 = 7,611.68 : x
  2. Step 2: Convert to fraction form
    27,331.76/40,996.92 = 7,611.68/x
  3. Step 3: Cross multiply
    27,331.76x = 40,996.92 × 7,611.68
  4. Step 4: Simplify right side
    27,331.76x = 312,055,436.03
  5. Step 5: Solve for x
    x = 312,055,436.03/27,331.76
  6. Step 6: Final answer
    x = 11,417.32

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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.