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Finding the Fourth Proportional to 15,995.48, 22,073.73 and 8,921.48

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Solution

The fourth proportional to 15,995.48, 22,073.73 and 8,921.48 is: 12,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,995.48 : 22,073.73 = 8,921.48 : x
  2. Step 2: Convert to fraction form
    15,995.48/22,073.73 = 8,921.48/x
  3. Step 3: Cross multiply
    15,995.48x = 22,073.73 × 8,921.48
  4. Step 4: Simplify right side
    15,995.48x = 196,930,340.72
  5. Step 5: Solve for x
    x = 196,930,340.72/15,995.48
  6. Step 6: Final answer
    x = 12,311.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.