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Finding the Fourth Proportional to 91,958.40, 126,914.46 and 51,672.24

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Solution

The fourth proportional to 91,958.40, 126,914.46 and 51,672.24 is: 71,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,958.40 : 126,914.46 = 51,672.24 : x
  2. Step 2: Convert to fraction form
    91,958.40/126,914.46 = 51,672.24/x
  3. Step 3: Cross multiply
    91,958.40x = 126,914.46 × 51,672.24
  4. Step 4: Simplify right side
    91,958.40x = 6,557,954,436.59
  5. Step 5: Solve for x
    x = 6,557,954,436.59/91,958.40
  6. Step 6: Final answer
    x = 71,314.36

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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.