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Finding the Fourth Proportional to 7,170.48, 10,757.64 and 6,485.04

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Solution

The fourth proportional to 7,170.48, 10,757.64 and 6,485.04 is: 9,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.48 : 10,757.64 = 6,485.04 : x
  2. Step 2: Convert to fraction form
    7,170.48/10,757.64 = 6,485.04/x
  3. Step 3: Cross multiply
    7,170.48x = 10,757.64 × 6,485.04
  4. Step 4: Simplify right side
    7,170.48x = 69,763,725.71
  5. Step 5: Solve for x
    x = 69,763,725.71/7,170.48
  6. Step 6: Final answer
    x = 9,729.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.