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Finding the Fourth Proportional to 34,860.50, 48,107.80 and 18,944.95

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Solution

The fourth proportional to 34,860.50, 48,107.80 and 18,944.95 is: 26,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,860.50 : 48,107.80 = 18,944.95 : x
  2. Step 2: Convert to fraction form
    34,860.50/48,107.80 = 18,944.95/x
  3. Step 3: Cross multiply
    34,860.50x = 48,107.80 × 18,944.95
  4. Step 4: Simplify right side
    34,860.50x = 911,399,865.61
  5. Step 5: Solve for x
    x = 911,399,865.61/34,860.50
  6. Step 6: Final answer
    x = 26,144.20

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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.