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Finding the Fourth Proportional to 6,216.40, 9,324.60 and 4,369.60

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Solution

The fourth proportional to 6,216.40, 9,324.60 and 4,369.60 is: 6,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216.40 : 9,324.60 = 4,369.60 : x
  2. Step 2: Convert to fraction form
    6,216.40/9,324.60 = 4,369.60/x
  3. Step 3: Cross multiply
    6,216.40x = 9,324.60 × 4,369.60
  4. Step 4: Simplify right side
    6,216.40x = 40,744,772.16
  5. Step 5: Solve for x
    x = 40,744,772.16/6,216.40
  6. Step 6: Final answer
    x = 6,554.40

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Similar ratio
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1.5x scale

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.