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Finding the Fourth Proportional to 16,679.49, 23,014.03 and 9,964.09

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Solution

The fourth proportional to 16,679.49, 23,014.03 and 9,964.09 is: 13,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,679.49 : 23,014.03 = 9,964.09 : x
  2. Step 2: Convert to fraction form
    16,679.49/23,014.03 = 9,964.09/x
  3. Step 3: Cross multiply
    16,679.49x = 23,014.03 × 9,964.09
  4. Step 4: Simplify right side
    16,679.49x = 229,313,866.18
  5. Step 5: Solve for x
    x = 229,313,866.18/16,679.49
  6. Step 6: Final answer
    x = 13,748.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.