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Finding the Fourth Proportional to 6,611.16, 9,916.74 and 3,150.84

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Solution

The fourth proportional to 6,611.16, 9,916.74 and 3,150.84 is: 4,726.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.16 : 9,916.74 = 3,150.84 : x
  2. Step 2: Convert to fraction form
    6,611.16/9,916.74 = 3,150.84/x
  3. Step 3: Cross multiply
    6,611.16x = 9,916.74 × 3,150.84
  4. Step 4: Simplify right side
    6,611.16x = 31,246,061.06
  5. Step 5: Solve for x
    x = 31,246,061.06/6,611.16
  6. Step 6: Final answer
    x = 4,726.26

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Similar ratio
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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.