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Finding the Fourth Proportional to 11,942.66, 16,479.03 and 6,637.46

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Solution

The fourth proportional to 11,942.66, 16,479.03 and 6,637.46 is: 9,158.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.66 : 16,479.03 = 6,637.46 : x
  2. Step 2: Convert to fraction form
    11,942.66/16,479.03 = 6,637.46/x
  3. Step 3: Cross multiply
    11,942.66x = 16,479.03 × 6,637.46
  4. Step 4: Simplify right side
    11,942.66x = 109,378,902.46
  5. Step 5: Solve for x
    x = 109,378,902.46/11,942.66
  6. Step 6: Final answer
    x = 9,158.67

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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.