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Finding the Fourth Proportional to 64,290.69, 96,376.97 and 22,160.77

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Solution

The fourth proportional to 64,290.69, 96,376.97 and 22,160.77 is: 33,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,290.69 : 96,376.97 = 22,160.77 : x
  2. Step 2: Convert to fraction form
    64,290.69/96,376.97 = 22,160.77/x
  3. Step 3: Cross multiply
    64,290.69x = 96,376.97 × 22,160.77
  4. Step 4: Simplify right side
    64,290.69x = 2,135,787,865.47
  5. Step 5: Solve for x
    x = 2,135,787,865.47/64,290.69
  6. Step 6: Final answer
    x = 33,220.80

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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.