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Finding the Fourth Proportional to 7,835.91, 11,753.91 and 2,641.83

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Solution

The fourth proportional to 7,835.91, 11,753.91 and 2,641.83 is: 3,962.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.91 : 11,753.91 = 2,641.83 : x
  2. Step 2: Convert to fraction form
    7,835.91/11,753.91 = 2,641.83/x
  3. Step 3: Cross multiply
    7,835.91x = 11,753.91 × 2,641.83
  4. Step 4: Simplify right side
    7,835.91x = 31,051,818.85
  5. Step 5: Solve for x
    x = 31,051,818.85/7,835.91
  6. Step 6: Final answer
    x = 3,962.76

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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.