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Finding the Fourth Proportional to 6,806.42, 9,395.46 and 6,619.16

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Solution

The fourth proportional to 6,806.42, 9,395.46 and 6,619.16 is: 9,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,806.42 : 9,395.46 = 6,619.16 : x
  2. Step 2: Convert to fraction form
    6,806.42/9,395.46 = 6,619.16/x
  3. Step 3: Cross multiply
    6,806.42x = 9,395.46 × 6,619.16
  4. Step 4: Simplify right side
    6,806.42x = 62,190,053.01
  5. Step 5: Solve for x
    x = 62,190,053.01/6,806.42
  6. Step 6: Final answer
    x = 9,136.97

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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.