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Finding the Fourth Proportional to 3,317.54, 4,972.21 and 2,907.48

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Solution

The fourth proportional to 3,317.54, 4,972.21 and 2,907.48 is: 4,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.54 : 4,972.21 = 2,907.48 : x
  2. Step 2: Convert to fraction form
    3,317.54/4,972.21 = 2,907.48/x
  3. Step 3: Cross multiply
    3,317.54x = 4,972.21 × 2,907.48
  4. Step 4: Simplify right side
    3,317.54x = 14,456,593.86
  5. Step 5: Solve for x
    x = 14,456,593.86/3,317.54
  6. Step 6: Final answer
    x = 4,357.62

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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.