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Finding the Fourth Proportional to 56,610.69, 84,911.13 and 19,169.97

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Solution

The fourth proportional to 56,610.69, 84,911.13 and 19,169.97 is: 28,753.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,610.69 : 84,911.13 = 19,169.97 : x
  2. Step 2: Convert to fraction form
    56,610.69/84,911.13 = 19,169.97/x
  3. Step 3: Cross multiply
    56,610.69x = 84,911.13 × 19,169.97
  4. Step 4: Simplify right side
    56,610.69x = 1,627,743,814.77
  5. Step 5: Solve for x
    x = 1,627,743,814.77/56,610.69
  6. Step 6: Final answer
    x = 28,753.29

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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.