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Finding the Fourth Proportional to 7,249.04, 9,992.40 and 6,646.40

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Solution

The fourth proportional to 7,249.04, 9,992.40 and 6,646.40 is: 9,161.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,249.04 : 9,992.40 = 6,646.40 : x
  2. Step 2: Convert to fraction form
    7,249.04/9,992.40 = 6,646.40/x
  3. Step 3: Cross multiply
    7,249.04x = 9,992.40 × 6,646.40
  4. Step 4: Simplify right side
    7,249.04x = 66,413,487.36
  5. Step 5: Solve for x
    x = 66,413,487.36/7,249.04
  6. Step 6: Final answer
    x = 9,161.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.