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Finding the Fourth Proportional to 45,676.48, 68,536.86 and 39,764.56

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Solution

The fourth proportional to 45,676.48, 68,536.86 and 39,764.56 is: 59,666.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,676.48 : 68,536.86 = 39,764.56 : x
  2. Step 2: Convert to fraction form
    45,676.48/68,536.86 = 39,764.56/x
  3. Step 3: Cross multiply
    45,676.48x = 68,536.86 × 39,764.56
  4. Step 4: Simplify right side
    45,676.48x = 2,725,338,081.68
  5. Step 5: Solve for x
    x = 2,725,338,081.68/45,676.48
  6. Step 6: Final answer
    x = 59,666.11

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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.