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Finding the Fourth Proportional to 7,879.29, 10,873.19 and 4,294.17

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Solution

The fourth proportional to 7,879.29, 10,873.19 and 4,294.17 is: 5,925.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.29 : 10,873.19 = 4,294.17 : x
  2. Step 2: Convert to fraction form
    7,879.29/10,873.19 = 4,294.17/x
  3. Step 3: Cross multiply
    7,879.29x = 10,873.19 × 4,294.17
  4. Step 4: Simplify right side
    7,879.29x = 46,691,326.30
  5. Step 5: Solve for x
    x = 46,691,326.30/7,879.29
  6. Step 6: Final answer
    x = 5,925.83

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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.