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Finding the Fourth Proportional to 64,657.94, 96,986.92 and 17,910.82

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Solution

The fourth proportional to 64,657.94, 96,986.92 and 17,910.82 is: 26,866.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,657.94 : 96,986.92 = 17,910.82 : x
  2. Step 2: Convert to fraction form
    64,657.94/96,986.92 = 17,910.82/x
  3. Step 3: Cross multiply
    64,657.94x = 96,986.92 × 17,910.82
  4. Step 4: Simplify right side
    64,657.94x = 1,737,115,266.47
  5. Step 5: Solve for x
    x = 1,737,115,266.47/64,657.94
  6. Step 6: Final answer
    x = 26,866.23

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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.