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Finding the Fourth Proportional to 52,672.91, 78,992.89 and 17,604.36

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Solution

The fourth proportional to 52,672.91, 78,992.89 and 17,604.36 is: 26,401.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,672.91 : 78,992.89 = 17,604.36 : x
  2. Step 2: Convert to fraction form
    52,672.91/78,992.89 = 17,604.36/x
  3. Step 3: Cross multiply
    52,672.91x = 78,992.89 × 17,604.36
  4. Step 4: Simplify right side
    52,672.91x = 1,390,619,228.99
  5. Step 5: Solve for x
    x = 1,390,619,228.99/52,672.91
  6. Step 6: Final answer
    x = 26,401.04

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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.