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Finding the Fourth Proportional to 18,348.82, 25,321.35 and 9,965.26

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Solution

The fourth proportional to 18,348.82, 25,321.35 and 9,965.26 is: 13,752.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.82 : 25,321.35 = 9,965.26 : x
  2. Step 2: Convert to fraction form
    18,348.82/25,321.35 = 9,965.26/x
  3. Step 3: Cross multiply
    18,348.82x = 25,321.35 × 9,965.26
  4. Step 4: Simplify right side
    18,348.82x = 252,333,836.30
  5. Step 5: Solve for x
    x = 252,333,836.30/18,348.82
  6. Step 6: Final answer
    x = 13,752.05

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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.