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Finding the Fourth Proportional to 55,993.81, 84,002.52 and 18,551.74

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Solution

The fourth proportional to 55,993.81, 84,002.52 and 18,551.74 is: 27,831.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,993.81 : 84,002.52 = 18,551.74 : x
  2. Step 2: Convert to fraction form
    55,993.81/84,002.52 = 18,551.74/x
  3. Step 3: Cross multiply
    55,993.81x = 84,002.52 × 18,551.74
  4. Step 4: Simplify right side
    55,993.81x = 1,558,392,769.95
  5. Step 5: Solve for x
    x = 1,558,392,769.95/55,993.81
  6. Step 6: Final answer
    x = 27,831.52

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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.