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Finding the Fourth Proportional to 43,882.74, 65,805.74 and 16,860.84

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Solution

The fourth proportional to 43,882.74, 65,805.74 and 16,860.84 is: 25,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,882.74 : 65,805.74 = 16,860.84 : x
  2. Step 2: Convert to fraction form
    43,882.74/65,805.74 = 16,860.84/x
  3. Step 3: Cross multiply
    43,882.74x = 65,805.74 × 16,860.84
  4. Step 4: Simplify right side
    43,882.74x = 1,109,539,968.92
  5. Step 5: Solve for x
    x = 1,109,539,968.92/43,882.74
  6. Step 6: Final answer
    x = 25,284.20

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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.