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Finding the Fourth Proportional to 18,388.48, 27,582.72 and 6,701.68

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Solution

The fourth proportional to 18,388.48, 27,582.72 and 6,701.68 is: 10,052.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.48 : 27,582.72 = 6,701.68 : x
  2. Step 2: Convert to fraction form
    18,388.48/27,582.72 = 6,701.68/x
  3. Step 3: Cross multiply
    18,388.48x = 27,582.72 × 6,701.68
  4. Step 4: Simplify right side
    18,388.48x = 184,850,562.97
  5. Step 5: Solve for x
    x = 184,850,562.97/18,388.48
  6. Step 6: Final answer
    x = 10,052.52

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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.