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Finding the Fourth Proportional to 17,765.44, 26,652.24 and 6,078.64

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Solution

The fourth proportional to 17,765.44, 26,652.24 and 6,078.64 is: 9,119.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,765.44 : 26,652.24 = 6,078.64 : x
  2. Step 2: Convert to fraction form
    17,765.44/26,652.24 = 6,078.64/x
  3. Step 3: Cross multiply
    17,765.44x = 26,652.24 × 6,078.64
  4. Step 4: Simplify right side
    17,765.44x = 162,009,372.15
  5. Step 5: Solve for x
    x = 162,009,372.15/17,765.44
  6. Step 6: Final answer
    x = 9,119.36

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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.