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Finding the Fourth Proportional to 28,692.50, 43,040.38 and 10,224.50

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Solution

The fourth proportional to 28,692.50, 43,040.38 and 10,224.50 is: 15,337.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,692.50 : 43,040.38 = 10,224.50 : x
  2. Step 2: Convert to fraction form
    28,692.50/43,040.38 = 10,224.50/x
  3. Step 3: Cross multiply
    28,692.50x = 43,040.38 × 10,224.50
  4. Step 4: Simplify right side
    28,692.50x = 440,066,365.31
  5. Step 5: Solve for x
    x = 440,066,365.31/28,692.50
  6. Step 6: Final answer
    x = 15,337.33

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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.