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Finding the Fourth Proportional to 13,593.76, 18,760.32 and 7,625.92

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Solution

The fourth proportional to 13,593.76, 18,760.32 and 7,625.92 is: 10,524.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.76 : 18,760.32 = 7,625.92 : x
  2. Step 2: Convert to fraction form
    13,593.76/18,760.32 = 7,625.92/x
  3. Step 3: Cross multiply
    13,593.76x = 18,760.32 × 7,625.92
  4. Step 4: Simplify right side
    13,593.76x = 143,064,699.49
  5. Step 5: Solve for x
    x = 143,064,699.49/13,593.76
  6. Step 6: Final answer
    x = 10,524.29

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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.