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Finding the Fourth Proportional to 16,679.68, 23,019.52 and 9,230.08

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Solution

The fourth proportional to 16,679.68, 23,019.52 and 9,230.08 is: 12,738.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,679.68 : 23,019.52 = 9,230.08 : x
  2. Step 2: Convert to fraction form
    16,679.68/23,019.52 = 9,230.08/x
  3. Step 3: Cross multiply
    16,679.68x = 23,019.52 × 9,230.08
  4. Step 4: Simplify right side
    16,679.68x = 212,472,011.16
  5. Step 5: Solve for x
    x = 212,472,011.16/16,679.68
  6. Step 6: Final answer
    x = 12,738.37

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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.