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Finding the Fourth Proportional to 71,369.73, 98,486.96 and 39,104.19

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Solution

The fourth proportional to 71,369.73, 98,486.96 and 39,104.19 is: 53,961.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,369.73 : 98,486.96 = 39,104.19 : x
  2. Step 2: Convert to fraction form
    71,369.73/98,486.96 = 39,104.19/x
  3. Step 3: Cross multiply
    71,369.73x = 98,486.96 × 39,104.19
  4. Step 4: Simplify right side
    71,369.73x = 3,851,252,600.84
  5. Step 5: Solve for x
    x = 3,851,252,600.84/71,369.73
  6. Step 6: Final answer
    x = 53,961.99

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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.