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Finding the Fourth Proportional to 5,654.50, 7,803.45 and 3,170.50

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Solution

The fourth proportional to 5,654.50, 7,803.45 and 3,170.50 is: 4,375.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,654.50 : 7,803.45 = 3,170.50 : x
  2. Step 2: Convert to fraction form
    5,654.50/7,803.45 = 3,170.50/x
  3. Step 3: Cross multiply
    5,654.50x = 7,803.45 × 3,170.50
  4. Step 4: Simplify right side
    5,654.50x = 24,740,838.23
  5. Step 5: Solve for x
    x = 24,740,838.23/5,654.50
  6. Step 6: Final answer
    x = 4,375.42

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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.