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Finding the Fourth Proportional to 43,262.49, 64,854.86 and 16,986.09

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Solution

The fourth proportional to 43,262.49, 64,854.86 and 16,986.09 is: 25,463.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,262.49 : 64,854.86 = 16,986.09 : x
  2. Step 2: Convert to fraction form
    43,262.49/64,854.86 = 16,986.09/x
  3. Step 3: Cross multiply
    43,262.49x = 64,854.86 × 16,986.09
  4. Step 4: Simplify right side
    43,262.49x = 1,101,630,403.97
  5. Step 5: Solve for x
    x = 1,101,630,403.97/43,262.49
  6. Step 6: Final answer
    x = 25,463.87

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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.