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Finding the Fourth Proportional to 11,793.36, 17,686.32 and 3,894.40

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Solution

The fourth proportional to 11,793.36, 17,686.32 and 3,894.40 is: 5,840.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,793.36 : 17,686.32 = 3,894.40 : x
  2. Step 2: Convert to fraction form
    11,793.36/17,686.32 = 3,894.40/x
  3. Step 3: Cross multiply
    11,793.36x = 17,686.32 × 3,894.40
  4. Step 4: Simplify right side
    11,793.36x = 68,877,604.61
  5. Step 5: Solve for x
    x = 68,877,604.61/11,793.36
  6. Step 6: Final answer
    x = 5,840.37

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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.