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Finding the Fourth Proportional to 6,905.73, 9,529.74 and 3,761.85

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Solution

The fourth proportional to 6,905.73, 9,529.74 and 3,761.85 is: 5,191.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.73 : 9,529.74 = 3,761.85 : x
  2. Step 2: Convert to fraction form
    6,905.73/9,529.74 = 3,761.85/x
  3. Step 3: Cross multiply
    6,905.73x = 9,529.74 × 3,761.85
  4. Step 4: Simplify right side
    6,905.73x = 35,849,452.42
  5. Step 5: Solve for x
    x = 35,849,452.42/6,905.73
  6. Step 6: Final answer
    x = 5,191.26

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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.