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Finding the Fourth Proportional to 28,766.03, 39,692.50 and 16,019.06

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Solution

The fourth proportional to 28,766.03, 39,692.50 and 16,019.06 is: 22,103.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,766.03 : 39,692.50 = 16,019.06 : x
  2. Step 2: Convert to fraction form
    28,766.03/39,692.50 = 16,019.06/x
  3. Step 3: Cross multiply
    28,766.03x = 39,692.50 × 16,019.06
  4. Step 4: Simplify right side
    28,766.03x = 635,836,300.54
  5. Step 5: Solve for x
    x = 635,836,300.54/28,766.03
  6. Step 6: Final answer
    x = 22,103.72

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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.