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Finding the Fourth Proportional to 23,812.88, 35,719.38 and 7,172.96

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Solution

The fourth proportional to 23,812.88, 35,719.38 and 7,172.96 is: 10,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,812.88 : 35,719.38 = 7,172.96 : x
  2. Step 2: Convert to fraction form
    23,812.88/35,719.38 = 7,172.96/x
  3. Step 3: Cross multiply
    23,812.88x = 35,719.38 × 7,172.96
  4. Step 4: Simplify right side
    23,812.88x = 256,213,683.96
  5. Step 5: Solve for x
    x = 256,213,683.96/23,812.88
  6. Step 6: Final answer
    x = 10,759.46

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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.