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Finding the Fourth Proportional to 72,093.89, 98,766.97 and 69,398.48

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Solution

The fourth proportional to 72,093.89, 98,766.97 and 69,398.48 is: 95,074.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,093.89 : 98,766.97 = 69,398.48 : x
  2. Step 2: Convert to fraction form
    72,093.89/98,766.97 = 69,398.48/x
  3. Step 3: Cross multiply
    72,093.89x = 98,766.97 × 69,398.48
  4. Step 4: Simplify right side
    72,093.89x = 6,854,277,592.21
  5. Step 5: Solve for x
    x = 6,854,277,592.21/72,093.89
  6. Step 6: Final answer
    x = 95,074.33

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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.