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Finding the Fourth Proportional to 18,293.92, 27,440.96 and 5,146.48

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Solution

The fourth proportional to 18,293.92, 27,440.96 and 5,146.48 is: 7,719.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.92 : 27,440.96 = 5,146.48 : x
  2. Step 2: Convert to fraction form
    18,293.92/27,440.96 = 5,146.48/x
  3. Step 3: Cross multiply
    18,293.92x = 27,440.96 × 5,146.48
  4. Step 4: Simplify right side
    18,293.92x = 141,224,351.82
  5. Step 5: Solve for x
    x = 141,224,351.82/18,293.92
  6. Step 6: Final answer
    x = 7,719.74

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Similar ratio
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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.