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Finding the Fourth Proportional to 7,169.64, 10,744.78 and 3,709.32

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Solution

The fourth proportional to 7,169.64, 10,744.78 and 3,709.32 is: 5,558.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,169.64 : 10,744.78 = 3,709.32 : x
  2. Step 2: Convert to fraction form
    7,169.64/10,744.78 = 3,709.32/x
  3. Step 3: Cross multiply
    7,169.64x = 10,744.78 × 3,709.32
  4. Step 4: Simplify right side
    7,169.64x = 39,855,827.35
  5. Step 5: Solve for x
    x = 39,855,827.35/7,169.64
  6. Step 6: Final answer
    x = 5,558.97

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1.5x scale

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.