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Finding the Fourth Proportional to 11,642.20, 17,465.54 and 4,620.83

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Solution

The fourth proportional to 11,642.20, 17,465.54 and 4,620.83 is: 6,932.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,642.20 : 17,465.54 = 4,620.83 : x
  2. Step 2: Convert to fraction form
    11,642.20/17,465.54 = 4,620.83/x
  3. Step 3: Cross multiply
    11,642.20x = 17,465.54 × 4,620.83
  4. Step 4: Simplify right side
    11,642.20x = 80,705,180.77
  5. Step 5: Solve for x
    x = 80,705,180.77/11,642.20
  6. Step 6: Final answer
    x = 6,932.13

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