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Finding the Fourth Proportional to 19,505.99, 26,905.85 and 12,792.04

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Solution

The fourth proportional to 19,505.99, 26,905.85 and 12,792.04 is: 17,644.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,505.99 : 26,905.85 = 12,792.04 : x
  2. Step 2: Convert to fraction form
    19,505.99/26,905.85 = 12,792.04/x
  3. Step 3: Cross multiply
    19,505.99x = 26,905.85 × 12,792.04
  4. Step 4: Simplify right side
    19,505.99x = 344,180,709.43
  5. Step 5: Solve for x
    x = 344,180,709.43/19,505.99
  6. Step 6: Final answer
    x = 17,644.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.