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Finding the Fourth Proportional to 17,787.91, 26,697.21 and 9,898.31

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Solution

The fourth proportional to 17,787.91, 26,697.21 and 9,898.31 is: 14,856.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.91 : 26,697.21 = 9,898.31 : x
  2. Step 2: Convert to fraction form
    17,787.91/26,697.21 = 9,898.31/x
  3. Step 3: Cross multiply
    17,787.91x = 26,697.21 × 9,898.31
  4. Step 4: Simplify right side
    17,787.91x = 264,257,260.72
  5. Step 5: Solve for x
    x = 264,257,260.72/17,787.91
  6. Step 6: Final answer
    x = 14,856.00

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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.