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Finding the Fourth Proportional to 33,250, 45,880.88 and 20,335.76

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Solution

The fourth proportional to 33,250, 45,880.88 and 20,335.76 is: 28,060.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,250 : 45,880.88 = 20,335.76 : x
  2. Step 2: Convert to fraction form
    33,250/45,880.88 = 20,335.76/x
  3. Step 3: Cross multiply
    33,250x = 45,880.88 × 20,335.76
  4. Step 4: Simplify right side
    33,250x = 933,022,564.27
  5. Step 5: Solve for x
    x = 933,022,564.27/33,250
  6. Step 6: Final answer
    x = 28,060.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.