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Finding the Fourth Proportional to 7,883.81, 10,879.11 and 4,346.95

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Solution

The fourth proportional to 7,883.81, 10,879.11 and 4,346.95 is: 5,998.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.81 : 10,879.11 = 4,346.95 : x
  2. Step 2: Convert to fraction form
    7,883.81/10,879.11 = 4,346.95/x
  3. Step 3: Cross multiply
    7,883.81x = 10,879.11 × 4,346.95
  4. Step 4: Simplify right side
    7,883.81x = 47,290,898.28
  5. Step 5: Solve for x
    x = 47,290,898.28/7,883.81
  6. Step 6: Final answer
    x = 5,998.48

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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.