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Finding the Fourth Proportional to 64,653.21, 96,986.57 and 17,906.09

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Solution

The fourth proportional to 64,653.21, 96,986.57 and 17,906.09 is: 26,861.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,653.21 : 96,986.57 = 17,906.09 : x
  2. Step 2: Convert to fraction form
    64,653.21/96,986.57 = 17,906.09/x
  3. Step 3: Cross multiply
    64,653.21x = 96,986.57 × 17,906.09
  4. Step 4: Simplify right side
    64,653.21x = 1,736,650,251.21
  5. Step 5: Solve for x
    x = 1,736,650,251.21/64,653.21
  6. Step 6: Final answer
    x = 26,861.01

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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.