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Finding the Fourth Proportional to 8,608.49, 11,880.57 and 5,253.56

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Solution

The fourth proportional to 8,608.49, 11,880.57 and 5,253.56 is: 7,250.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.49 : 11,880.57 = 5,253.56 : x
  2. Step 2: Convert to fraction form
    8,608.49/11,880.57 = 5,253.56/x
  3. Step 3: Cross multiply
    8,608.49x = 11,880.57 × 5,253.56
  4. Step 4: Simplify right side
    8,608.49x = 62,415,247.63
  5. Step 5: Solve for x
    x = 62,415,247.63/8,608.49
  6. Step 6: Final answer
    x = 7,250.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.