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Finding the Fourth Proportional to 12,373.36, 18,562.78 and 6,136.78

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Solution

The fourth proportional to 12,373.36, 18,562.78 and 6,136.78 is: 9,206.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,373.36 : 18,562.78 = 6,136.78 : x
  2. Step 2: Convert to fraction form
    12,373.36/18,562.78 = 6,136.78/x
  3. Step 3: Cross multiply
    12,373.36x = 18,562.78 × 6,136.78
  4. Step 4: Simplify right side
    12,373.36x = 113,915,697.05
  5. Step 5: Solve for x
    x = 113,915,697.05/12,373.36
  6. Step 6: Final answer
    x = 9,206.53

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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.