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Finding the Fourth Proportional to 17,765.64, 26,648.46 and 6,078.96

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Solution

The fourth proportional to 17,765.64, 26,648.46 and 6,078.96 is: 9,118.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,765.64 : 26,648.46 = 6,078.96 : x
  2. Step 2: Convert to fraction form
    17,765.64/26,648.46 = 6,078.96/x
  3. Step 3: Cross multiply
    17,765.64x = 26,648.46 × 6,078.96
  4. Step 4: Simplify right side
    17,765.64x = 161,994,922.40
  5. Step 5: Solve for x
    x = 161,994,922.40/17,765.64
  6. Step 6: Final answer
    x = 9,118.44

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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.