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Finding the Fourth Proportional to 71,942.48, 98,752.42 and 63,806.84

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Solution

The fourth proportional to 71,942.48, 98,752.42 and 63,806.84 is: 87,584.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,942.48 : 98,752.42 = 63,806.84 : x
  2. Step 2: Convert to fraction form
    71,942.48/98,752.42 = 63,806.84/x
  3. Step 3: Cross multiply
    71,942.48x = 98,752.42 × 63,806.84
  4. Step 4: Simplify right side
    71,942.48x = 6,301,079,862.55
  5. Step 5: Solve for x
    x = 6,301,079,862.55/71,942.48
  6. Step 6: Final answer
    x = 87,584.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.