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Finding the Fourth Proportional to 7,883.88, 10,879.56 and 4,347.02

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Solution

The fourth proportional to 7,883.88, 10,879.56 and 4,347.02 is: 5,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.88 : 10,879.56 = 4,347.02 : x
  2. Step 2: Convert to fraction form
    7,883.88/10,879.56 = 4,347.02/x
  3. Step 3: Cross multiply
    7,883.88x = 10,879.56 × 4,347.02
  4. Step 4: Simplify right side
    7,883.88x = 47,293,664.91
  5. Step 5: Solve for x
    x = 47,293,664.91/7,883.88
  6. Step 6: Final answer
    x = 5,998.78

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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.