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Finding the Fourth Proportional to 17,773.10, 26,659.65 and 14,921.90

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Solution

The fourth proportional to 17,773.10, 26,659.65 and 14,921.90 is: 22,382.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,773.10 : 26,659.65 = 14,921.90 : x
  2. Step 2: Convert to fraction form
    17,773.10/26,659.65 = 14,921.90/x
  3. Step 3: Cross multiply
    17,773.10x = 26,659.65 × 14,921.90
  4. Step 4: Simplify right side
    17,773.10x = 397,812,631.34
  5. Step 5: Solve for x
    x = 397,812,631.34/17,773.10
  6. Step 6: Final answer
    x = 22,382.85

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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.