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Finding the Fourth Proportional to 6,972.22, 9,559.28 and 6,847.48

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Solution

The fourth proportional to 6,972.22, 9,559.28 and 6,847.48 is: 9,388.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.22 : 9,559.28 = 6,847.48 : x
  2. Step 2: Convert to fraction form
    6,972.22/9,559.28 = 6,847.48/x
  3. Step 3: Cross multiply
    6,972.22x = 9,559.28 × 6,847.48
  4. Step 4: Simplify right side
    6,972.22x = 65,456,978.61
  5. Step 5: Solve for x
    x = 65,456,978.61/6,972.22
  6. Step 6: Final answer
    x = 9,388.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.