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Finding the Fourth Proportional to 52,906.40, 73,005.28 and 30,251.28

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Solution

The fourth proportional to 52,906.40, 73,005.28 and 30,251.28 is: 41,743.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,906.40 : 73,005.28 = 30,251.28 : x
  2. Step 2: Convert to fraction form
    52,906.40/73,005.28 = 30,251.28/x
  3. Step 3: Cross multiply
    52,906.40x = 73,005.28 × 30,251.28
  4. Step 4: Simplify right side
    52,906.40x = 2,208,503,166.76
  5. Step 5: Solve for x
    x = 2,208,503,166.76/52,906.40
  6. Step 6: Final answer
    x = 41,743.59

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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.