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Finding the Fourth Proportional to 55,937.92, 83,889.06 and 18,491

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Solution

The fourth proportional to 55,937.92, 83,889.06 and 18,491 is: 27,730.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,937.92 : 83,889.06 = 18,491 : x
  2. Step 2: Convert to fraction form
    55,937.92/83,889.06 = 18,491/x
  3. Step 3: Cross multiply
    55,937.92x = 83,889.06 × 18,491
  4. Step 4: Simplify right side
    55,937.92x = 1,551,192,608.46
  5. Step 5: Solve for x
    x = 1,551,192,608.46/55,937.92
  6. Step 6: Final answer
    x = 27,730.61

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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.