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Finding the Fourth Proportional to 36,893.87, 55,347.91 and 11,940.11

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Solution

The fourth proportional to 36,893.87, 55,347.91 and 11,940.11 is: 17,912.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,893.87 : 55,347.91 = 11,940.11 : x
  2. Step 2: Convert to fraction form
    36,893.87/55,347.91 = 11,940.11/x
  3. Step 3: Cross multiply
    36,893.87x = 55,347.91 × 11,940.11
  4. Step 4: Simplify right side
    36,893.87x = 660,859,827.08
  5. Step 5: Solve for x
    x = 660,859,827.08/36,893.87
  6. Step 6: Final answer
    x = 17,912.46

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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.