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Finding the Fourth Proportional to 7,883.94, 10,879.86 and 4,347.06

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Solution

The fourth proportional to 7,883.94, 10,879.86 and 4,347.06 is: 5,998.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.94 : 10,879.86 = 4,347.06 : x
  2. Step 2: Convert to fraction form
    7,883.94/10,879.86 = 4,347.06/x
  3. Step 3: Cross multiply
    7,883.94x = 10,879.86 × 4,347.06
  4. Step 4: Simplify right side
    7,883.94x = 47,295,404.21
  5. Step 5: Solve for x
    x = 47,295,404.21/7,883.94
  6. Step 6: Final answer
    x = 5,998.96

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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.