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Finding the Fourth Proportional to 13,894.88, 20,836.01 and 5,993.66

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Solution

The fourth proportional to 13,894.88, 20,836.01 and 5,993.66 is: 8,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,894.88 : 20,836.01 = 5,993.66 : x
  2. Step 2: Convert to fraction form
    13,894.88/20,836.01 = 5,993.66/x
  3. Step 3: Cross multiply
    13,894.88x = 20,836.01 × 5,993.66
  4. Step 4: Simplify right side
    13,894.88x = 124,884,026.77
  5. Step 5: Solve for x
    x = 124,884,026.77/13,894.88
  6. Step 6: Final answer
    x = 8,987.78

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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.