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Finding the Fourth Proportional to 18,295.92, 27,443.96 and 5,148.48

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Solution

The fourth proportional to 18,295.92, 27,443.96 and 5,148.48 is: 7,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.92 : 27,443.96 = 5,148.48 : x
  2. Step 2: Convert to fraction form
    18,295.92/27,443.96 = 5,148.48/x
  3. Step 3: Cross multiply
    18,295.92x = 27,443.96 × 5,148.48
  4. Step 4: Simplify right side
    18,295.92x = 141,294,679.18
  5. Step 5: Solve for x
    x = 141,294,679.18/18,295.92
  6. Step 6: Final answer
    x = 7,722.74

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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.