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Finding the Fourth Proportional to 8,885.84, 13,342.46 and 7,517.16

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Solution

The fourth proportional to 8,885.84, 13,342.46 and 7,517.16 is: 11,287.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.84 : 13,342.46 = 7,517.16 : x
  2. Step 2: Convert to fraction form
    8,885.84/13,342.46 = 7,517.16/x
  3. Step 3: Cross multiply
    8,885.84x = 13,342.46 × 7,517.16
  4. Step 4: Simplify right side
    8,885.84x = 100,297,369.03
  5. Step 5: Solve for x
    x = 100,297,369.03/8,885.84
  6. Step 6: Final answer
    x = 11,287.33

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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.