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Finding the Fourth Proportional to 45,365.52, 68,044.56 and 28,676.88

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Solution

The fourth proportional to 45,365.52, 68,044.56 and 28,676.88 is: 43,012.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,365.52 : 68,044.56 = 28,676.88 : x
  2. Step 2: Convert to fraction form
    45,365.52/68,044.56 = 28,676.88/x
  3. Step 3: Cross multiply
    45,365.52x = 68,044.56 × 28,676.88
  4. Step 4: Simplify right side
    45,365.52x = 1,951,305,681.77
  5. Step 5: Solve for x
    x = 1,951,305,681.77/45,365.52
  6. Step 6: Final answer
    x = 43,012.97

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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.