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Finding the Fourth Proportional to 6,690.75, 9,233.11 and 3,706.52

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Solution

The fourth proportional to 6,690.75, 9,233.11 and 3,706.52 is: 5,114.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.75 : 9,233.11 = 3,706.52 : x
  2. Step 2: Convert to fraction form
    6,690.75/9,233.11 = 3,706.52/x
  3. Step 3: Cross multiply
    6,690.75x = 9,233.11 × 3,706.52
  4. Step 4: Simplify right side
    6,690.75x = 34,222,727.71
  5. Step 5: Solve for x
    x = 34,222,727.71/6,690.75
  6. Step 6: Final answer
    x = 5,114.93

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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.