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Finding the Fourth Proportional to 43,863.90, 60,539.67 and 28,743.90

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Solution

The fourth proportional to 43,863.90, 60,539.67 and 28,743.90 is: 39,671.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,863.90 : 60,539.67 = 28,743.90 : x
  2. Step 2: Convert to fraction form
    43,863.90/60,539.67 = 28,743.90/x
  3. Step 3: Cross multiply
    43,863.90x = 60,539.67 × 28,743.90
  4. Step 4: Simplify right side
    43,863.90x = 1,740,146,220.51
  5. Step 5: Solve for x
    x = 1,740,146,220.51/43,863.90
  6. Step 6: Final answer
    x = 39,671.49

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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.