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Finding the Fourth Proportional to 39,992.49, 59,922.99 and 13,682.88

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Solution

The fourth proportional to 39,992.49, 59,922.99 and 13,682.88 is: 20,501.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,992.49 : 59,922.99 = 13,682.88 : x
  2. Step 2: Convert to fraction form
    39,992.49/59,922.99 = 13,682.88/x
  3. Step 3: Cross multiply
    39,992.49x = 59,922.99 × 13,682.88
  4. Step 4: Simplify right side
    39,992.49x = 819,919,081.41
  5. Step 5: Solve for x
    x = 819,919,081.41/39,992.49
  6. Step 6: Final answer
    x = 20,501.83

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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.