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Finding the Fourth Proportional to 64,101.87, 96,117.57 and 19,716.30

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Solution

The fourth proportional to 64,101.87, 96,117.57 and 19,716.30 is: 29,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,101.87 : 96,117.57 = 19,716.30 : x
  2. Step 2: Convert to fraction form
    64,101.87/96,117.57 = 19,716.30/x
  3. Step 3: Cross multiply
    64,101.87x = 96,117.57 × 19,716.30
  4. Step 4: Simplify right side
    64,101.87x = 1,895,082,845.39
  5. Step 5: Solve for x
    x = 1,895,082,845.39/64,101.87
  6. Step 6: Final answer
    x = 29,563.61

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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.