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Finding the Fourth Proportional to 52,905.88, 79,363.48 and 19,626.30

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Solution

The fourth proportional to 52,905.88, 79,363.48 and 19,626.30 is: 29,441.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,905.88 : 79,363.48 = 19,626.30 : x
  2. Step 2: Convert to fraction form
    52,905.88/79,363.48 = 19,626.30/x
  3. Step 3: Cross multiply
    52,905.88x = 79,363.48 × 19,626.30
  4. Step 4: Simplify right side
    52,905.88x = 1,557,611,467.52
  5. Step 5: Solve for x
    x = 1,557,611,467.52/52,905.88
  6. Step 6: Final answer
    x = 29,441.18

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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.