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Finding the Fourth Proportional to 44,986, 67,432.92 and 18,706

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Solution

The fourth proportional to 44,986, 67,432.92 and 18,706 is: 28,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,986 : 67,432.92 = 18,706 : x
  2. Step 2: Convert to fraction form
    44,986/67,432.92 = 18,706/x
  3. Step 3: Cross multiply
    44,986x = 67,432.92 × 18,706
  4. Step 4: Simplify right side
    44,986x = 1,261,400,201.52
  5. Step 5: Solve for x
    x = 1,261,400,201.52/44,986
  6. Step 6: Final answer
    x = 28,039.84

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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.