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Finding the Fourth Proportional to 13,894.88, 19,171.14 and 7,924.37

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Solution

The fourth proportional to 13,894.88, 19,171.14 and 7,924.37 is: 10,933.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,894.88 : 19,171.14 = 7,924.37 : x
  2. Step 2: Convert to fraction form
    13,894.88/19,171.14 = 7,924.37/x
  3. Step 3: Cross multiply
    13,894.88x = 19,171.14 × 7,924.37
  4. Step 4: Simplify right side
    13,894.88x = 151,919,110.83
  5. Step 5: Solve for x
    x = 151,919,110.83/13,894.88
  6. Step 6: Final answer
    x = 10,933.46

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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.