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Finding the Fourth Proportional to 33,909.60, 50,864.40 and 28,898.40

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Solution

The fourth proportional to 33,909.60, 50,864.40 and 28,898.40 is: 43,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,909.60 : 50,864.40 = 28,898.40 : x
  2. Step 2: Convert to fraction form
    33,909.60/50,864.40 = 28,898.40/x
  3. Step 3: Cross multiply
    33,909.60x = 50,864.40 × 28,898.40
  4. Step 4: Simplify right side
    33,909.60x = 1,469,899,776.96
  5. Step 5: Solve for x
    x = 1,469,899,776.96/33,909.60
  6. Step 6: Final answer
    x = 43,347.60

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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.