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Finding the Fourth Proportional to 11,744.76, 17,617.09 and 2,979.65

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Solution

The fourth proportional to 11,744.76, 17,617.09 and 2,979.65 is: 4,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,744.76 : 17,617.09 = 2,979.65 : x
  2. Step 2: Convert to fraction form
    11,744.76/17,617.09 = 2,979.65/x
  3. Step 3: Cross multiply
    11,744.76x = 17,617.09 × 2,979.65
  4. Step 4: Simplify right side
    11,744.76x = 52,492,762.22
  5. Step 5: Solve for x
    x = 52,492,762.22/11,744.76
  6. Step 6: Final answer
    x = 4,469.46

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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.