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Finding the Fourth Proportional to 6,687.02, 9,222.53 and 5,012.42

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Solution

The fourth proportional to 6,687.02, 9,222.53 and 5,012.42 is: 6,912.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.02 : 9,222.53 = 5,012.42 : x
  2. Step 2: Convert to fraction form
    6,687.02/9,222.53 = 5,012.42/x
  3. Step 3: Cross multiply
    6,687.02x = 9,222.53 × 5,012.42
  4. Step 4: Simplify right side
    6,687.02x = 46,227,122.65
  5. Step 5: Solve for x
    x = 46,227,122.65/6,687.02
  6. Step 6: Final answer
    x = 6,912.96

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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.