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Finding the Fourth Proportional to 8,917.74, 12,304.35 and 5,773.32

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Solution

The fourth proportional to 8,917.74, 12,304.35 and 5,773.32 is: 7,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.74 : 12,304.35 = 5,773.32 : x
  2. Step 2: Convert to fraction form
    8,917.74/12,304.35 = 5,773.32/x
  3. Step 3: Cross multiply
    8,917.74x = 12,304.35 × 5,773.32
  4. Step 4: Simplify right side
    8,917.74x = 71,036,949.94
  5. Step 5: Solve for x
    x = 71,036,949.94/8,917.74
  6. Step 6: Final answer
    x = 7,965.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.