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Finding the Fourth Proportional to 45,608.56, 68,361 and 19,296.88

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Solution

The fourth proportional to 45,608.56, 68,361 and 19,296.88 is: 28,923.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,608.56 : 68,361 = 19,296.88 : x
  2. Step 2: Convert to fraction form
    45,608.56/68,361 = 19,296.88/x
  3. Step 3: Cross multiply
    45,608.56x = 68,361 × 19,296.88
  4. Step 4: Simplify right side
    45,608.56x = 1,319,154,013.68
  5. Step 5: Solve for x
    x = 1,319,154,013.68/45,608.56
  6. Step 6: Final answer
    x = 28,923.39

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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.