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Finding the Fourth Proportional to 33,992.49, 50,988.54 and 13,215.99

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Solution

The fourth proportional to 33,992.49, 50,988.54 and 13,215.99 is: 19,823.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,992.49 : 50,988.54 = 13,215.99 : x
  2. Step 2: Convert to fraction form
    33,992.49/50,988.54 = 13,215.99/x
  3. Step 3: Cross multiply
    33,992.49x = 50,988.54 × 13,215.99
  4. Step 4: Simplify right side
    33,992.49x = 673,864,034.75
  5. Step 5: Solve for x
    x = 673,864,034.75/33,992.49
  6. Step 6: Final answer
    x = 19,823.91

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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.