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Finding the Fourth Proportional to 23,880.78, 35,821.28 and 7,240.97

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Solution

The fourth proportional to 23,880.78, 35,821.28 and 7,240.97 is: 10,861.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,880.78 : 35,821.28 = 7,240.97 : x
  2. Step 2: Convert to fraction form
    23,880.78/35,821.28 = 7,240.97/x
  3. Step 3: Cross multiply
    23,880.78x = 35,821.28 × 7,240.97
  4. Step 4: Simplify right side
    23,880.78x = 259,380,598.53
  5. Step 5: Solve for x
    x = 259,380,598.53/23,880.78
  6. Step 6: Final answer
    x = 10,861.48

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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.