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Finding the Fourth Proportional to 71,486.80, 107,149.92 and 33,554.68

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Solution

The fourth proportional to 71,486.80, 107,149.92 and 33,554.68 is: 50,294.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,486.80 : 107,149.92 = 33,554.68 : x
  2. Step 2: Convert to fraction form
    71,486.80/107,149.92 = 33,554.68/x
  3. Step 3: Cross multiply
    71,486.80x = 107,149.92 × 33,554.68
  4. Step 4: Simplify right side
    71,486.80x = 3,595,381,277.63
  5. Step 5: Solve for x
    x = 3,595,381,277.63/71,486.80
  6. Step 6: Final answer
    x = 50,294.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.