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Finding the Fourth Proportional to 39,394.53, 59,078.97 and 13,092.21

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Solution

The fourth proportional to 39,394.53, 59,078.97 and 13,092.21 is: 19,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,394.53 : 59,078.97 = 13,092.21 : x
  2. Step 2: Convert to fraction form
    39,394.53/59,078.97 = 13,092.21/x
  3. Step 3: Cross multiply
    39,394.53x = 59,078.97 × 13,092.21
  4. Step 4: Simplify right side
    39,394.53x = 773,474,281.82
  5. Step 5: Solve for x
    x = 773,474,281.82/39,394.53
  6. Step 6: Final answer
    x = 19,634.05

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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.