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Finding the Fourth Proportional to 4,640.88, 6,961.01 and 2,176.25

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Solution

The fourth proportional to 4,640.88, 6,961.01 and 2,176.25 is: 3,264.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640.88 : 6,961.01 = 2,176.25 : x
  2. Step 2: Convert to fraction form
    4,640.88/6,961.01 = 2,176.25/x
  3. Step 3: Cross multiply
    4,640.88x = 6,961.01 × 2,176.25
  4. Step 4: Simplify right side
    4,640.88x = 15,148,852.33
  5. Step 5: Solve for x
    x = 15,148,852.33/4,640.88
  6. Step 6: Final answer
    x = 3,264.22

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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.