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Finding the Fourth Proportional to 6,996.91, 9,664.40 and 5,079.67

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Solution

The fourth proportional to 6,996.91, 9,664.40 and 5,079.67 is: 7,016.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,996.91 : 9,664.40 = 5,079.67 : x
  2. Step 2: Convert to fraction form
    6,996.91/9,664.40 = 5,079.67/x
  3. Step 3: Cross multiply
    6,996.91x = 9,664.40 × 5,079.67
  4. Step 4: Simplify right side
    6,996.91x = 49,091,914.43
  5. Step 5: Solve for x
    x = 49,091,914.43/6,996.91
  6. Step 6: Final answer
    x = 7,016.23

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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.