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Finding the Fourth Proportional to 8,168.72, 12,253.07 and 6,528.47

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Solution

The fourth proportional to 8,168.72, 12,253.07 and 6,528.47 is: 9,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.72 : 12,253.07 = 6,528.47 : x
  2. Step 2: Convert to fraction form
    8,168.72/12,253.07 = 6,528.47/x
  3. Step 3: Cross multiply
    8,168.72x = 12,253.07 × 6,528.47
  4. Step 4: Simplify right side
    8,168.72x = 79,993,754.96
  5. Step 5: Solve for x
    x = 79,993,754.96/8,168.72
  6. Step 6: Final answer
    x = 9,792.70

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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.