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Finding the Fourth Proportional to 13,137.99, 19,686.39 and 7,593.94

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Solution

The fourth proportional to 13,137.99, 19,686.39 and 7,593.94 is: 11,379.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137.99 : 19,686.39 = 7,593.94 : x
  2. Step 2: Convert to fraction form
    13,137.99/19,686.39 = 7,593.94/x
  3. Step 3: Cross multiply
    13,137.99x = 19,686.39 × 7,593.94
  4. Step 4: Simplify right side
    13,137.99x = 149,497,264.48
  5. Step 5: Solve for x
    x = 149,497,264.48/13,137.99
  6. Step 6: Final answer
    x = 11,379.01

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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.