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Finding the Fourth Proportional to 34,983.88, 48,279.06 and 19,879.11

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Solution

The fourth proportional to 34,983.88, 48,279.06 and 19,879.11 is: 27,433.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,983.88 : 48,279.06 = 19,879.11 : x
  2. Step 2: Convert to fraction form
    34,983.88/48,279.06 = 19,879.11/x
  3. Step 3: Cross multiply
    34,983.88x = 48,279.06 × 19,879.11
  4. Step 4: Simplify right side
    34,983.88x = 959,744,744.44
  5. Step 5: Solve for x
    x = 959,744,744.44/34,983.88
  6. Step 6: Final answer
    x = 27,433.91

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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.