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Finding the Fourth Proportional to 55,490.96, 83,247.96 and 18,554

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Solution

The fourth proportional to 55,490.96, 83,247.96 and 18,554 is: 27,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,490.96 : 83,247.96 = 18,554 : x
  2. Step 2: Convert to fraction form
    55,490.96/83,247.96 = 18,554/x
  3. Step 3: Cross multiply
    55,490.96x = 83,247.96 × 18,554
  4. Step 4: Simplify right side
    55,490.96x = 1,544,582,649.84
  5. Step 5: Solve for x
    x = 1,544,582,649.84/55,490.96
  6. Step 6: Final answer
    x = 27,834.85

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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.