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Finding the Fourth Proportional to 2,007.62, 3,011.31 and 546.68

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Solution

The fourth proportional to 2,007.62, 3,011.31 and 546.68 is: 819.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.62 : 3,011.31 = 546.68 : x
  2. Step 2: Convert to fraction form
    2,007.62/3,011.31 = 546.68/x
  3. Step 3: Cross multiply
    2,007.62x = 3,011.31 × 546.68
  4. Step 4: Simplify right side
    2,007.62x = 1,646,207.89
  5. Step 5: Solve for x
    x = 1,646,207.89/2,007.62
  6. Step 6: Final answer
    x = 819.98

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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.