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Finding the Fourth Proportional to 55,489.96, 83,246.46 and 18,553

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Solution

The fourth proportional to 55,489.96, 83,246.46 and 18,553 is: 27,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,489.96 : 83,246.46 = 18,553 : x
  2. Step 2: Convert to fraction form
    55,489.96/83,246.46 = 18,553/x
  3. Step 3: Cross multiply
    55,489.96x = 83,246.46 × 18,553
  4. Step 4: Simplify right side
    55,489.96x = 1,544,471,572.38
  5. Step 5: Solve for x
    x = 1,544,471,572.38/55,489.96
  6. Step 6: Final answer
    x = 27,833.35

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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.