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Finding the Fourth Proportional to 6,912.01, 9,542.07 and 4,080.25

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Solution

The fourth proportional to 6,912.01, 9,542.07 and 4,080.25 is: 5,632.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.01 : 9,542.07 = 4,080.25 : x
  2. Step 2: Convert to fraction form
    6,912.01/9,542.07 = 4,080.25/x
  3. Step 3: Cross multiply
    6,912.01x = 9,542.07 × 4,080.25
  4. Step 4: Simplify right side
    6,912.01x = 38,934,007.26
  5. Step 5: Solve for x
    x = 38,934,007.26/6,912.01
  6. Step 6: Final answer
    x = 5,632.81

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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.