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Finding the Fourth Proportional to 7,175.88, 9,902.52 and 4,032

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Solution

The fourth proportional to 7,175.88, 9,902.52 and 4,032 is: 5,564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175.88 : 9,902.52 = 4,032 : x
  2. Step 2: Convert to fraction form
    7,175.88/9,902.52 = 4,032/x
  3. Step 3: Cross multiply
    7,175.88x = 9,902.52 × 4,032
  4. Step 4: Simplify right side
    7,175.88x = 39,926,960.64
  5. Step 5: Solve for x
    x = 39,926,960.64/7,175.88
  6. Step 6: Final answer
    x = 5,564.05

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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.