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Finding the Fourth Proportional to 44,805.75, 67,212.81 and 13,215.84

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Solution

The fourth proportional to 44,805.75, 67,212.81 and 13,215.84 is: 19,824.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,805.75 : 67,212.81 = 13,215.84 : x
  2. Step 2: Convert to fraction form
    44,805.75/67,212.81 = 13,215.84/x
  3. Step 3: Cross multiply
    44,805.75x = 67,212.81 × 13,215.84
  4. Step 4: Simplify right side
    44,805.75x = 888,273,742.91
  5. Step 5: Solve for x
    x = 888,273,742.91/44,805.75
  6. Step 6: Final answer
    x = 19,824.99

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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.