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Finding the Fourth Proportional to 12,173.38, 18,260.06 and 3,965.38

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Solution

The fourth proportional to 12,173.38, 18,260.06 and 3,965.38 is: 5,948.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.38 : 18,260.06 = 3,965.38 : x
  2. Step 2: Convert to fraction form
    12,173.38/18,260.06 = 3,965.38/x
  3. Step 3: Cross multiply
    12,173.38x = 18,260.06 × 3,965.38
  4. Step 4: Simplify right side
    12,173.38x = 72,408,076.72
  5. Step 5: Solve for x
    x = 72,408,076.72/12,173.38
  6. Step 6: Final answer
    x = 5,948.07

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1.5x scale

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.