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Finding the Fourth Proportional to 48,721.86, 73,093.86 and 15,444

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Solution

The fourth proportional to 48,721.86, 73,093.86 and 15,444 is: 23,169.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,721.86 : 73,093.86 = 15,444 : x
  2. Step 2: Convert to fraction form
    48,721.86/73,093.86 = 15,444/x
  3. Step 3: Cross multiply
    48,721.86x = 73,093.86 × 15,444
  4. Step 4: Simplify right side
    48,721.86x = 1,128,861,573.84
  5. Step 5: Solve for x
    x = 1,128,861,573.84/48,721.86
  6. Step 6: Final answer
    x = 23,169.51

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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.