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Finding the Fourth Proportional to 4,644.72, 6,965.33 and 2,887.16

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Solution

The fourth proportional to 4,644.72, 6,965.33 and 2,887.16 is: 4,329.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,644.72 : 6,965.33 = 2,887.16 : x
  2. Step 2: Convert to fraction form
    4,644.72/6,965.33 = 2,887.16/x
  3. Step 3: Cross multiply
    4,644.72x = 6,965.33 × 2,887.16
  4. Step 4: Simplify right side
    4,644.72x = 20,109,972.90
  5. Step 5: Solve for x
    x = 20,109,972.90/4,644.72
  6. Step 6: Final answer
    x = 4,329.64

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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.