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Finding the Fourth Proportional to 43,381.44, 65,071.26 and 13,799.34

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Solution

The fourth proportional to 43,381.44, 65,071.26 and 13,799.34 is: 20,698.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,381.44 : 65,071.26 = 13,799.34 : x
  2. Step 2: Convert to fraction form
    43,381.44/65,071.26 = 13,799.34/x
  3. Step 3: Cross multiply
    43,381.44x = 65,071.26 × 13,799.34
  4. Step 4: Simplify right side
    43,381.44x = 897,940,440.97
  5. Step 5: Solve for x
    x = 897,940,440.97/43,381.44
  6. Step 6: Final answer
    x = 20,698.72

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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.