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Finding the Fourth Proportional to 36,684.93, 55,031.25 and 11,719.11

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Solution

The fourth proportional to 36,684.93, 55,031.25 and 11,719.11 is: 17,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,684.93 : 55,031.25 = 11,719.11 : x
  2. Step 2: Convert to fraction form
    36,684.93/55,031.25 = 11,719.11/x
  3. Step 3: Cross multiply
    36,684.93x = 55,031.25 × 11,719.11
  4. Step 4: Simplify right side
    36,684.93x = 644,917,272.19
  5. Step 5: Solve for x
    x = 644,917,272.19/36,684.93
  6. Step 6: Final answer
    x = 17,579.90

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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.