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Finding the Fourth Proportional to 33,987.84, 50,989.04 and 14,255.02

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Solution

The fourth proportional to 33,987.84, 50,989.04 and 14,255.02 is: 21,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,987.84 : 50,989.04 = 14,255.02 : x
  2. Step 2: Convert to fraction form
    33,987.84/50,989.04 = 14,255.02/x
  3. Step 3: Cross multiply
    33,987.84x = 50,989.04 × 14,255.02
  4. Step 4: Simplify right side
    33,987.84x = 726,849,911.08
  5. Step 5: Solve for x
    x = 726,849,911.08/33,987.84
  6. Step 6: Final answer
    x = 21,385.59

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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.