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Finding the Fourth Proportional to 15,211.17, 22,817.07 and 6,889.68

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Solution

The fourth proportional to 15,211.17, 22,817.07 and 6,889.68 is: 10,334.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.17 : 22,817.07 = 6,889.68 : x
  2. Step 2: Convert to fraction form
    15,211.17/22,817.07 = 6,889.68/x
  3. Step 3: Cross multiply
    15,211.17x = 22,817.07 × 6,889.68
  4. Step 4: Simplify right side
    15,211.17x = 157,202,310.84
  5. Step 5: Solve for x
    x = 157,202,310.84/15,211.17
  6. Step 6: Final answer
    x = 10,334.66

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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.