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Finding the Fourth Proportional to 2,425.98, 3,636.41 and 964.74

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Solution

The fourth proportional to 2,425.98, 3,636.41 and 964.74 is: 1,446.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.98 : 3,636.41 = 964.74 : x
  2. Step 2: Convert to fraction form
    2,425.98/3,636.41 = 964.74/x
  3. Step 3: Cross multiply
    2,425.98x = 3,636.41 × 964.74
  4. Step 4: Simplify right side
    2,425.98x = 3,508,185.36
  5. Step 5: Solve for x
    x = 3,508,185.36/2,425.98
  6. Step 6: Final answer
    x = 1,446.09

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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.