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Finding the Fourth Proportional to 43,951.76, 65,914.20 and 15,868.40

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Solution

The fourth proportional to 43,951.76, 65,914.20 and 15,868.40 is: 23,797.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,951.76 : 65,914.20 = 15,868.40 : x
  2. Step 2: Convert to fraction form
    43,951.76/65,914.20 = 15,868.40/x
  3. Step 3: Cross multiply
    43,951.76x = 65,914.20 × 15,868.40
  4. Step 4: Simplify right side
    43,951.76x = 1,045,952,891.28
  5. Step 5: Solve for x
    x = 1,045,952,891.28/43,951.76
  6. Step 6: Final answer
    x = 23,797.75

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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.