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Finding the Fourth Proportional to 55,803.40, 83,695.83 and 18,363.94

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Solution

The fourth proportional to 55,803.40, 83,695.83 and 18,363.94 is: 27,542.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,803.40 : 83,695.83 = 18,363.94 : x
  2. Step 2: Convert to fraction form
    55,803.40/83,695.83 = 18,363.94/x
  3. Step 3: Cross multiply
    55,803.40x = 83,695.83 × 18,363.94
  4. Step 4: Simplify right side
    55,803.40x = 1,536,985,200.37
  5. Step 5: Solve for x
    x = 1,536,985,200.37/55,803.40
  6. Step 6: Final answer
    x = 27,542.86

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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.