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Finding the Fourth Proportional to 18,306.32, 25,262.75 and 9,922.82

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Solution

The fourth proportional to 18,306.32, 25,262.75 and 9,922.82 is: 13,693.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.32 : 25,262.75 = 9,922.82 : x
  2. Step 2: Convert to fraction form
    18,306.32/25,262.75 = 9,922.82/x
  3. Step 3: Cross multiply
    18,306.32x = 25,262.75 × 9,922.82
  4. Step 4: Simplify right side
    18,306.32x = 250,677,619.45
  5. Step 5: Solve for x
    x = 250,677,619.45/18,306.32
  6. Step 6: Final answer
    x = 13,693.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.