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Finding the Fourth Proportional to 6,918.75, 10,361.16 and 6,253.11

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Solution

The fourth proportional to 6,918.75, 10,361.16 and 6,253.11 is: 9,364.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.75 : 10,361.16 = 6,253.11 : x
  2. Step 2: Convert to fraction form
    6,918.75/10,361.16 = 6,253.11/x
  3. Step 3: Cross multiply
    6,918.75x = 10,361.16 × 6,253.11
  4. Step 4: Simplify right side
    6,918.75x = 64,789,473.21
  5. Step 5: Solve for x
    x = 64,789,473.21/6,918.75
  6. Step 6: Final answer
    x = 9,364.33

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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.