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Finding the Fourth Proportional to 19,866.12, 29,797.62 and 8,773.08

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Solution

The fourth proportional to 19,866.12, 29,797.62 and 8,773.08 is: 13,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.12 : 29,797.62 = 8,773.08 : x
  2. Step 2: Convert to fraction form
    19,866.12/29,797.62 = 8,773.08/x
  3. Step 3: Cross multiply
    19,866.12x = 29,797.62 × 8,773.08
  4. Step 4: Simplify right side
    19,866.12x = 261,416,904.07
  5. Step 5: Solve for x
    x = 261,416,904.07/19,866.12
  6. Step 6: Final answer
    x = 13,158.93

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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.