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Finding the Fourth Proportional to 2,680.45, 3,698.81 and 1,501.36

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Solution

The fourth proportional to 2,680.45, 3,698.81 and 1,501.36 is: 2,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.45 : 3,698.81 = 1,501.36 : x
  2. Step 2: Convert to fraction form
    2,680.45/3,698.81 = 1,501.36/x
  3. Step 3: Cross multiply
    2,680.45x = 3,698.81 × 1,501.36
  4. Step 4: Simplify right side
    2,680.45x = 5,553,245.38
  5. Step 5: Solve for x
    x = 5,553,245.38/2,680.45
  6. Step 6: Final answer
    x = 2,071.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.