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Finding the Fourth Proportional to 36,130.38, 49,876.67 and 21,017.54

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Solution

The fourth proportional to 36,130.38, 49,876.67 and 21,017.54 is: 29,013.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,130.38 : 49,876.67 = 21,017.54 : x
  2. Step 2: Convert to fraction form
    36,130.38/49,876.67 = 21,017.54/x
  3. Step 3: Cross multiply
    36,130.38x = 49,876.67 × 21,017.54
  4. Step 4: Simplify right side
    36,130.38x = 1,048,284,552.32
  5. Step 5: Solve for x
    x = 1,048,284,552.32/36,130.38
  6. Step 6: Final answer
    x = 29,013.94

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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.