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Finding the Fourth Proportional to 8,046.30, 11,103.57 and 4,689.21

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Solution

The fourth proportional to 8,046.30, 11,103.57 and 4,689.21 is: 6,470.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,046.30 : 11,103.57 = 4,689.21 : x
  2. Step 2: Convert to fraction form
    8,046.30/11,103.57 = 4,689.21/x
  3. Step 3: Cross multiply
    8,046.30x = 11,103.57 × 4,689.21
  4. Step 4: Simplify right side
    8,046.30x = 52,066,971.48
  5. Step 5: Solve for x
    x = 52,066,971.48/8,046.30
  6. Step 6: Final answer
    x = 6,470.92

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