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Finding the Fourth Proportional to 15,995.25, 22,073.47 and 8,922.12

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Solution

The fourth proportional to 15,995.25, 22,073.47 and 8,922.12 is: 12,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,995.25 : 22,073.47 = 8,922.12 : x
  2. Step 2: Convert to fraction form
    15,995.25/22,073.47 = 8,922.12/x
  3. Step 3: Cross multiply
    15,995.25x = 22,073.47 × 8,922.12
  4. Step 4: Simplify right side
    15,995.25x = 196,942,148.16
  5. Step 5: Solve for x
    x = 196,942,148.16/15,995.25
  6. Step 6: Final answer
    x = 12,312.54

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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.