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Finding the Fourth Proportional to 15,995.00, 22,073.12 and 8,921.87

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Solution

The fourth proportional to 15,995.00, 22,073.12 and 8,921.87 is: 12,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,995.00 : 22,073.12 = 8,921.87 : x
  2. Step 2: Convert to fraction form
    15,995.00/22,073.12 = 8,921.87/x
  3. Step 3: Cross multiply
    15,995.00x = 22,073.12 × 8,921.87
  4. Step 4: Simplify right side
    15,995.00x = 196,933,584.62
  5. Step 5: Solve for x
    x = 196,933,584.62/15,995.00
  6. Step 6: Final answer
    x = 12,312.20

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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.