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Finding the Fourth Proportional to 13,593.78, 18,758.52 and 7,625.46

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Solution

The fourth proportional to 13,593.78, 18,758.52 and 7,625.46 is: 10,522.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.78 : 18,758.52 = 7,625.46 : x
  2. Step 2: Convert to fraction form
    13,593.78/18,758.52 = 7,625.46/x
  3. Step 3: Cross multiply
    13,593.78x = 18,758.52 × 7,625.46
  4. Step 4: Simplify right side
    13,593.78x = 143,042,343.92
  5. Step 5: Solve for x
    x = 143,042,343.92/13,593.78
  6. Step 6: Final answer
    x = 10,522.63

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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.