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Finding the Fourth Proportional to 6,912.68, 9,545.46 and 5,927.72

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Solution

The fourth proportional to 6,912.68, 9,545.46 and 5,927.72 is: 8,185.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.68 : 9,545.46 = 5,927.72 : x
  2. Step 2: Convert to fraction form
    6,912.68/9,545.46 = 5,927.72/x
  3. Step 3: Cross multiply
    6,912.68x = 9,545.46 × 5,927.72
  4. Step 4: Simplify right side
    6,912.68x = 56,582,814.15
  5. Step 5: Solve for x
    x = 56,582,814.15/6,912.68
  6. Step 6: Final answer
    x = 8,185.37

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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.