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Finding the Fourth Proportional to 7,473.90, 11,188.89 and 5,902.86

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Solution

The fourth proportional to 7,473.90, 11,188.89 and 5,902.86 is: 8,836.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,473.90 : 11,188.89 = 5,902.86 : x
  2. Step 2: Convert to fraction form
    7,473.90/11,188.89 = 5,902.86/x
  3. Step 3: Cross multiply
    7,473.90x = 11,188.89 × 5,902.86
  4. Step 4: Simplify right side
    7,473.90x = 66,046,451.23
  5. Step 5: Solve for x
    x = 66,046,451.23/7,473.90
  6. Step 6: Final answer
    x = 8,836.95

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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.