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Finding the Fourth Proportional to 12,240.49, 18,360.70 and 3,475.42

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Solution

The fourth proportional to 12,240.49, 18,360.70 and 3,475.42 is: 5,213.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.49 : 18,360.70 = 3,475.42 : x
  2. Step 2: Convert to fraction form
    12,240.49/18,360.70 = 3,475.42/x
  3. Step 3: Cross multiply
    12,240.49x = 18,360.70 × 3,475.42
  4. Step 4: Simplify right side
    12,240.49x = 63,811,143.99
  5. Step 5: Solve for x
    x = 63,811,143.99/12,240.49
  6. Step 6: Final answer
    x = 5,213.12

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.