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Finding the Fourth Proportional to 7,879.99, 10,873.96 and 4,895.77

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Solution

The fourth proportional to 7,879.99, 10,873.96 and 4,895.77 is: 6,755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.99 : 10,873.96 = 4,895.77 : x
  2. Step 2: Convert to fraction form
    7,879.99/10,873.96 = 4,895.77/x
  3. Step 3: Cross multiply
    7,879.99x = 10,873.96 × 4,895.77
  4. Step 4: Simplify right side
    7,879.99x = 53,236,407.15
  5. Step 5: Solve for x
    x = 53,236,407.15/7,879.99
  6. Step 6: Final answer
    x = 6,755.90

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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.