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Finding the Fourth Proportional to 8,680.32, 13,020.16 and 2,524.16

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Solution

The fourth proportional to 8,680.32, 13,020.16 and 2,524.16 is: 3,786.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.32 : 13,020.16 = 2,524.16 : x
  2. Step 2: Convert to fraction form
    8,680.32/13,020.16 = 2,524.16/x
  3. Step 3: Cross multiply
    8,680.32x = 13,020.16 × 2,524.16
  4. Step 4: Simplify right side
    8,680.32x = 32,864,967.07
  5. Step 5: Solve for x
    x = 32,864,967.07/8,680.32
  6. Step 6: Final answer
    x = 3,786.15

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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.