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Finding the Fourth Proportional to 4,662.88, 6,992.16 and 2,715.68

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Solution

The fourth proportional to 4,662.88, 6,992.16 and 2,715.68 is: 4,072.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,662.88 : 6,992.16 = 2,715.68 : x
  2. Step 2: Convert to fraction form
    4,662.88/6,992.16 = 2,715.68/x
  3. Step 3: Cross multiply
    4,662.88x = 6,992.16 × 2,715.68
  4. Step 4: Simplify right side
    4,662.88x = 18,988,469.07
  5. Step 5: Solve for x
    x = 18,988,469.07/4,662.88
  6. Step 6: Final answer
    x = 4,072.26

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1.5x scale

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.