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Finding the Fourth Proportional to 43,321.62, 64,966.02 and 17,012

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Solution

The fourth proportional to 43,321.62, 64,966.02 and 17,012 is: 25,511.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,321.62 : 64,966.02 = 17,012 : x
  2. Step 2: Convert to fraction form
    43,321.62/64,966.02 = 17,012/x
  3. Step 3: Cross multiply
    43,321.62x = 64,966.02 × 17,012
  4. Step 4: Simplify right side
    43,321.62x = 1,105,201,932.24
  5. Step 5: Solve for x
    x = 1,105,201,932.24/43,321.62
  6. Step 6: Final answer
    x = 25,511.56

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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.