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Finding the Fourth Proportional to 33,991.60, 50,987.40 and 14,308.60

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Solution

The fourth proportional to 33,991.60, 50,987.40 and 14,308.60 is: 21,462.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,991.60 : 50,987.40 = 14,308.60 : x
  2. Step 2: Convert to fraction form
    33,991.60/50,987.40 = 14,308.60/x
  3. Step 3: Cross multiply
    33,991.60x = 50,987.40 × 14,308.60
  4. Step 4: Simplify right side
    33,991.60x = 729,558,311.64
  5. Step 5: Solve for x
    x = 729,558,311.64/33,991.60
  6. Step 6: Final answer
    x = 21,462.90

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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.