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Finding the Fourth Proportional to 2,925.53, 4,388.34 and 734.25

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Solution

The fourth proportional to 2,925.53, 4,388.34 and 734.25 is: 1,101.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.53 : 4,388.34 = 734.25 : x
  2. Step 2: Convert to fraction form
    2,925.53/4,388.34 = 734.25/x
  3. Step 3: Cross multiply
    2,925.53x = 4,388.34 × 734.25
  4. Step 4: Simplify right side
    2,925.53x = 3,222,138.65
  5. Step 5: Solve for x
    x = 3,222,138.65/2,925.53
  6. Step 6: Final answer
    x = 1,101.39

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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.