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Finding the Fourth Proportional to 2,762.82, 3,809.97 and 2,342.70

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Solution

The fourth proportional to 2,762.82, 3,809.97 and 2,342.70 is: 3,230.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.82 : 3,809.97 = 2,342.70 : x
  2. Step 2: Convert to fraction form
    2,762.82/3,809.97 = 2,342.70/x
  3. Step 3: Cross multiply
    2,762.82x = 3,809.97 × 2,342.70
  4. Step 4: Simplify right side
    2,762.82x = 8,925,616.72
  5. Step 5: Solve for x
    x = 8,925,616.72/2,762.82
  6. Step 6: Final answer
    x = 3,230.62

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1.5x scale

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.