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Finding the Fourth Proportional to 8,794.70, 12,136.79 and 5,018.37

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Solution

The fourth proportional to 8,794.70, 12,136.79 and 5,018.37 is: 6,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,794.70 : 12,136.79 = 5,018.37 : x
  2. Step 2: Convert to fraction form
    8,794.70/12,136.79 = 5,018.37/x
  3. Step 3: Cross multiply
    8,794.70x = 12,136.79 × 5,018.37
  4. Step 4: Simplify right side
    8,794.70x = 60,906,858.70
  5. Step 5: Solve for x
    x = 60,906,858.70/8,794.70
  6. Step 6: Final answer
    x = 6,925.40

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1.5x scale

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.