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Finding the Fourth Proportional to 8,653.74, 11,942.17 and 4,674.85

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Solution

The fourth proportional to 8,653.74, 11,942.17 and 4,674.85 is: 6,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653.74 : 11,942.17 = 4,674.85 : x
  2. Step 2: Convert to fraction form
    8,653.74/11,942.17 = 4,674.85/x
  3. Step 3: Cross multiply
    8,653.74x = 11,942.17 × 4,674.85
  4. Step 4: Simplify right side
    8,653.74x = 55,827,853.42
  5. Step 5: Solve for x
    x = 55,827,853.42/8,653.74
  6. Step 6: Final answer
    x = 6,451.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.