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Finding the Fourth Proportional to 8,494.67, 11,722.94 and 4,717.89

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Solution

The fourth proportional to 8,494.67, 11,722.94 and 4,717.89 is: 6,510.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,494.67 : 11,722.94 = 4,717.89 : x
  2. Step 2: Convert to fraction form
    8,494.67/11,722.94 = 4,717.89/x
  3. Step 3: Cross multiply
    8,494.67x = 11,722.94 × 4,717.89
  4. Step 4: Simplify right side
    8,494.67x = 55,307,517.81
  5. Step 5: Solve for x
    x = 55,307,517.81/8,494.67
  6. Step 6: Final answer
    x = 6,510.85

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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.