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Finding the Fourth Proportional to 8,549.02, 12,805.53 and 7,245.91

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Solution

The fourth proportional to 8,549.02, 12,805.53 and 7,245.91 is: 10,853.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,549.02 : 12,805.53 = 7,245.91 : x
  2. Step 2: Convert to fraction form
    8,549.02/12,805.53 = 7,245.91/x
  3. Step 3: Cross multiply
    8,549.02x = 12,805.53 × 7,245.91
  4. Step 4: Simplify right side
    8,549.02x = 92,787,717.88
  5. Step 5: Solve for x
    x = 92,787,717.88/8,549.02
  6. Step 6: Final answer
    x = 10,853.61

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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.