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Finding the Fourth Proportional to 53,388.50, 80,094.12 and 15,951.50

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Solution

The fourth proportional to 53,388.50, 80,094.12 and 15,951.50 is: 23,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,388.50 : 80,094.12 = 15,951.50 : x
  2. Step 2: Convert to fraction form
    53,388.50/80,094.12 = 15,951.50/x
  3. Step 3: Cross multiply
    53,388.50x = 80,094.12 × 15,951.50
  4. Step 4: Simplify right side
    53,388.50x = 1,277,621,355.18
  5. Step 5: Solve for x
    x = 1,277,621,355.18/53,388.50
  6. Step 6: Final answer
    x = 23,930.65

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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.