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Finding the Fourth Proportional to 4,966.62, 7,450.60 and 1,680.64

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Solution

The fourth proportional to 4,966.62, 7,450.60 and 1,680.64 is: 2,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,966.62 : 7,450.60 = 1,680.64 : x
  2. Step 2: Convert to fraction form
    4,966.62/7,450.60 = 1,680.64/x
  3. Step 3: Cross multiply
    4,966.62x = 7,450.60 × 1,680.64
  4. Step 4: Simplify right side
    4,966.62x = 12,521,776.38
  5. Step 5: Solve for x
    x = 12,521,776.38/4,966.62
  6. Step 6: Final answer
    x = 2,521.19

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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.