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Finding the Fourth Proportional to 18,692.77, 25,795.30 and 10,309.27

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Solution

The fourth proportional to 18,692.77, 25,795.30 and 10,309.27 is: 14,226.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.77 : 25,795.30 = 10,309.27 : x
  2. Step 2: Convert to fraction form
    18,692.77/25,795.30 = 10,309.27/x
  3. Step 3: Cross multiply
    18,692.77x = 25,795.30 × 10,309.27
  4. Step 4: Simplify right side
    18,692.77x = 265,930,531.91
  5. Step 5: Solve for x
    x = 265,930,531.91/18,692.77
  6. Step 6: Final answer
    x = 14,226.39

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1.5x scale

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.