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Finding the Fourth Proportional to 7,607.22, 11,414.48 and 6,621.86

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Solution

The fourth proportional to 7,607.22, 11,414.48 and 6,621.86 is: 9,935.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,607.22 : 11,414.48 = 6,621.86 : x
  2. Step 2: Convert to fraction form
    7,607.22/11,414.48 = 6,621.86/x
  3. Step 3: Cross multiply
    7,607.22x = 11,414.48 × 6,621.86
  4. Step 4: Simplify right side
    7,607.22x = 75,584,998.35
  5. Step 5: Solve for x
    x = 75,584,998.35/7,607.22
  6. Step 6: Final answer
    x = 9,935.96

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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.