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Finding the Fourth Proportional to 8,578.88, 11,836.24 and 5,593.64

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Solution

The fourth proportional to 8,578.88, 11,836.24 and 5,593.64 is: 7,717.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.88 : 11,836.24 = 5,593.64 : x
  2. Step 2: Convert to fraction form
    8,578.88/11,836.24 = 5,593.64/x
  3. Step 3: Cross multiply
    8,578.88x = 11,836.24 × 5,593.64
  4. Step 4: Simplify right side
    8,578.88x = 66,207,665.51
  5. Step 5: Solve for x
    x = 66,207,665.51/8,578.88
  6. Step 6: Final answer
    x = 7,717.52

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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.