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Finding the Fourth Proportional to 3,707.62, 5,118.87 and 3,313.96

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Solution

The fourth proportional to 3,707.62, 5,118.87 and 3,313.96 is: 4,575.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.62 : 5,118.87 = 3,313.96 : x
  2. Step 2: Convert to fraction form
    3,707.62/5,118.87 = 3,313.96/x
  3. Step 3: Cross multiply
    3,707.62x = 5,118.87 × 3,313.96
  4. Step 4: Simplify right side
    3,707.62x = 16,963,730.43
  5. Step 5: Solve for x
    x = 16,963,730.43/3,707.62
  6. Step 6: Final answer
    x = 4,575.37

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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.