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Finding the Fourth Proportional to 16,692.87, 25,064.36 and 15,890.36

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Solution

The fourth proportional to 16,692.87, 25,064.36 and 15,890.36 is: 23,859.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,692.87 : 25,064.36 = 15,890.36 : x
  2. Step 2: Convert to fraction form
    16,692.87/25,064.36 = 15,890.36/x
  3. Step 3: Cross multiply
    16,692.87x = 25,064.36 × 15,890.36
  4. Step 4: Simplify right side
    16,692.87x = 398,281,703.57
  5. Step 5: Solve for x
    x = 398,281,703.57/16,692.87
  6. Step 6: Final answer
    x = 23,859.39

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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.