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Finding the Fourth Proportional to 39,394.80, 59,092.07 and 11,692.80

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Solution

The fourth proportional to 39,394.80, 59,092.07 and 11,692.80 is: 17,539.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,394.80 : 59,092.07 = 11,692.80 : x
  2. Step 2: Convert to fraction form
    39,394.80/59,092.07 = 11,692.80/x
  3. Step 3: Cross multiply
    39,394.80x = 59,092.07 × 11,692.80
  4. Step 4: Simplify right side
    39,394.80x = 690,951,756.10
  5. Step 5: Solve for x
    x = 690,951,756.10/39,394.80
  6. Step 6: Final answer
    x = 17,539.16

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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.