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Finding the Fourth Proportional to 22,659.20, 33,965.40 and 10,185.20

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Solution

The fourth proportional to 22,659.20, 33,965.40 and 10,185.20 is: 15,267.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,659.20 : 33,965.40 = 10,185.20 : x
  2. Step 2: Convert to fraction form
    22,659.20/33,965.40 = 10,185.20/x
  3. Step 3: Cross multiply
    22,659.20x = 33,965.40 × 10,185.20
  4. Step 4: Simplify right side
    22,659.20x = 345,944,392.08
  5. Step 5: Solve for x
    x = 345,944,392.08/22,659.20
  6. Step 6: Final answer
    x = 15,267.28

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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.