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Finding the Fourth Proportional to 64,657.32, 96,986.10 and 17,910.32

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Solution

The fourth proportional to 64,657.32, 96,986.10 and 17,910.32 is: 26,865.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,657.32 : 96,986.10 = 17,910.32 : x
  2. Step 2: Convert to fraction form
    64,657.32/96,986.10 = 17,910.32/x
  3. Step 3: Cross multiply
    64,657.32x = 96,986.10 × 17,910.32
  4. Step 4: Simplify right side
    64,657.32x = 1,737,052,086.55
  5. Step 5: Solve for x
    x = 1,737,052,086.55/64,657.32
  6. Step 6: Final answer
    x = 26,865.51

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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.