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Finding the Fourth Proportional to 71,992.75, 99,360.93 and 43,692.97

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Solution

The fourth proportional to 71,992.75, 99,360.93 and 43,692.97 is: 60,302.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,992.75 : 99,360.93 = 43,692.97 : x
  2. Step 2: Convert to fraction form
    71,992.75/99,360.93 = 43,692.97/x
  3. Step 3: Cross multiply
    71,992.75x = 99,360.93 × 43,692.97
  4. Step 4: Simplify right side
    71,992.75x = 4,341,374,133.66
  5. Step 5: Solve for x
    x = 4,341,374,133.66/71,992.75
  6. Step 6: Final answer
    x = 60,302.94

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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.