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Finding the Fourth Proportional to 6,611.82, 9,918.66 and 1,932.18

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Solution

The fourth proportional to 6,611.82, 9,918.66 and 1,932.18 is: 2,898.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.82 : 9,918.66 = 1,932.18 : x
  2. Step 2: Convert to fraction form
    6,611.82/9,918.66 = 1,932.18/x
  3. Step 3: Cross multiply
    6,611.82x = 9,918.66 × 1,932.18
  4. Step 4: Simplify right side
    6,611.82x = 19,164,586.89
  5. Step 5: Solve for x
    x = 19,164,586.89/6,611.82
  6. Step 6: Final answer
    x = 2,898.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.