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Finding the Fourth Proportional to 52,625.79, 78,969.82 and 19,369.21

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Solution

The fourth proportional to 52,625.79, 78,969.82 and 19,369.21 is: 29,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,625.79 : 78,969.82 = 19,369.21 : x
  2. Step 2: Convert to fraction form
    52,625.79/78,969.82 = 19,369.21/x
  3. Step 3: Cross multiply
    52,625.79x = 78,969.82 × 19,369.21
  4. Step 4: Simplify right side
    52,625.79x = 1,529,583,027.24
  5. Step 5: Solve for x
    x = 1,529,583,027.24/52,625.79
  6. Step 6: Final answer
    x = 29,065.27

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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.