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Finding the Fourth Proportional to 8,248.16, 12,348.90 and 7,469.64

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Solution

The fourth proportional to 8,248.16, 12,348.90 and 7,469.64 is: 11,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,248.16 : 12,348.90 = 7,469.64 : x
  2. Step 2: Convert to fraction form
    8,248.16/12,348.90 = 7,469.64/x
  3. Step 3: Cross multiply
    8,248.16x = 12,348.90 × 7,469.64
  4. Step 4: Simplify right side
    8,248.16x = 92,241,837.40
  5. Step 5: Solve for x
    x = 92,241,837.40/8,248.16
  6. Step 6: Final answer
    x = 11,183.32

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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.