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Finding the Fourth Proportional to 7,879.32, 11,818.98 and 6,042.24

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Solution

The fourth proportional to 7,879.32, 11,818.98 and 6,042.24 is: 9,063.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.32 : 11,818.98 = 6,042.24 : x
  2. Step 2: Convert to fraction form
    7,879.32/11,818.98 = 6,042.24/x
  3. Step 3: Cross multiply
    7,879.32x = 11,818.98 × 6,042.24
  4. Step 4: Simplify right side
    7,879.32x = 71,413,113.72
  5. Step 5: Solve for x
    x = 71,413,113.72/7,879.32
  6. Step 6: Final answer
    x = 9,063.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.