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Finding the Fourth Proportional to 11,718.57, 17,580.36 and 6,723.24

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Solution

The fourth proportional to 11,718.57, 17,580.36 and 6,723.24 is: 10,086.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.57 : 17,580.36 = 6,723.24 : x
  2. Step 2: Convert to fraction form
    11,718.57/17,580.36 = 6,723.24/x
  3. Step 3: Cross multiply
    11,718.57x = 17,580.36 × 6,723.24
  4. Step 4: Simplify right side
    11,718.57x = 118,196,954.35
  5. Step 5: Solve for x
    x = 118,196,954.35/11,718.57
  6. Step 6: Final answer
    x = 10,086.29

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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.