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Finding the Fourth Proportional to 6,425.24, 9,639.16 and 3,653.24

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Solution

The fourth proportional to 6,425.24, 9,639.16 and 3,653.24 is: 5,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425.24 : 9,639.16 = 3,653.24 : x
  2. Step 2: Convert to fraction form
    6,425.24/9,639.16 = 3,653.24/x
  3. Step 3: Cross multiply
    6,425.24x = 9,639.16 × 3,653.24
  4. Step 4: Simplify right side
    6,425.24x = 35,214,164.88
  5. Step 5: Solve for x
    x = 35,214,164.88/6,425.24
  6. Step 6: Final answer
    x = 5,480.60

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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.