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Finding the Fourth Proportional to 38,136.70, 57,205.05 and 11,844.10

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Solution

The fourth proportional to 38,136.70, 57,205.05 and 11,844.10 is: 17,766.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,136.70 : 57,205.05 = 11,844.10 : x
  2. Step 2: Convert to fraction form
    38,136.70/57,205.05 = 11,844.10/x
  3. Step 3: Cross multiply
    38,136.70x = 57,205.05 × 11,844.10
  4. Step 4: Simplify right side
    38,136.70x = 677,542,332.71
  5. Step 5: Solve for x
    x = 677,542,332.71/38,136.70
  6. Step 6: Final answer
    x = 17,766.15

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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.