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Finding the Fourth Proportional to 6,655.76, 9,185.04 and 3,671.72

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Solution

The fourth proportional to 6,655.76, 9,185.04 and 3,671.72 is: 5,067.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.76 : 9,185.04 = 3,671.72 : x
  2. Step 2: Convert to fraction form
    6,655.76/9,185.04 = 3,671.72/x
  3. Step 3: Cross multiply
    6,655.76x = 9,185.04 × 3,671.72
  4. Step 4: Simplify right side
    6,655.76x = 33,724,895.07
  5. Step 5: Solve for x
    x = 33,724,895.07/6,655.76
  6. Step 6: Final answer
    x = 5,067.02

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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.