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Finding the Fourth Proportional to 36,369.79, 54,554.75 and 11,411.75

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Solution

The fourth proportional to 36,369.79, 54,554.75 and 11,411.75 is: 17,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,369.79 : 54,554.75 = 11,411.75 : x
  2. Step 2: Convert to fraction form
    36,369.79/54,554.75 = 11,411.75/x
  3. Step 3: Cross multiply
    36,369.79x = 54,554.75 × 11,411.75
  4. Step 4: Simplify right side
    36,369.79x = 622,565,258.34
  5. Step 5: Solve for x
    x = 622,565,258.34/36,369.79
  6. Step 6: Final answer
    x = 17,117.65

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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.