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Finding the Fourth Proportional to 52,692.30, 72,717.03 and 28,819.62

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Solution

The fourth proportional to 52,692.30, 72,717.03 and 28,819.62 is: 39,771.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,692.30 : 72,717.03 = 28,819.62 : x
  2. Step 2: Convert to fraction form
    52,692.30/72,717.03 = 28,819.62/x
  3. Step 3: Cross multiply
    52,692.30x = 72,717.03 × 28,819.62
  4. Step 4: Simplify right side
    52,692.30x = 2,095,677,172.13
  5. Step 5: Solve for x
    x = 2,095,677,172.13/52,692.30
  6. Step 6: Final answer
    x = 39,771.98

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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.