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Finding the Fourth Proportional to 15,995.43, 22,073.73 and 8,922.31

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Solution

The fourth proportional to 15,995.43, 22,073.73 and 8,922.31 is: 12,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,995.43 : 22,073.73 = 8,922.31 : x
  2. Step 2: Convert to fraction form
    15,995.43/22,073.73 = 8,922.31/x
  3. Step 3: Cross multiply
    15,995.43x = 22,073.73 × 8,922.31
  4. Step 4: Simplify right side
    15,995.43x = 196,948,661.92
  5. Step 5: Solve for x
    x = 196,948,661.92/15,995.43
  6. Step 6: Final answer
    x = 12,312.81

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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.