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Finding the Fourth Proportional to 8,394.96, 11,578.68 and 6,623.04

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Solution

The fourth proportional to 8,394.96, 11,578.68 and 6,623.04 is: 9,134.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394.96 : 11,578.68 = 6,623.04 : x
  2. Step 2: Convert to fraction form
    8,394.96/11,578.68 = 6,623.04/x
  3. Step 3: Cross multiply
    8,394.96x = 11,578.68 × 6,623.04
  4. Step 4: Simplify right side
    8,394.96x = 76,686,060.79
  5. Step 5: Solve for x
    x = 76,686,060.79/8,394.96
  6. Step 6: Final answer
    x = 9,134.77

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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.