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Finding the Fourth Proportional to 91,880.94, 126,806.92 and 51,596.40

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Solution

The fourth proportional to 91,880.94, 126,806.92 and 51,596.40 is: 71,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,880.94 : 126,806.92 = 51,596.40 : x
  2. Step 2: Convert to fraction form
    91,880.94/126,806.92 = 51,596.40/x
  3. Step 3: Cross multiply
    91,880.94x = 126,806.92 × 51,596.40
  4. Step 4: Simplify right side
    91,880.94x = 6,542,780,567.09
  5. Step 5: Solve for x
    x = 6,542,780,567.09/91,880.94
  6. Step 6: Final answer
    x = 71,209.33

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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.