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Finding the Fourth Proportional to 25,692.72, 38,546.85 and 18,210.72

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Solution

The fourth proportional to 25,692.72, 38,546.85 and 18,210.72 is: 27,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,692.72 : 38,546.85 = 18,210.72 : x
  2. Step 2: Convert to fraction form
    25,692.72/38,546.85 = 18,210.72/x
  3. Step 3: Cross multiply
    25,692.72x = 38,546.85 × 18,210.72
  4. Step 4: Simplify right side
    25,692.72x = 701,965,892.23
  5. Step 5: Solve for x
    x = 701,965,892.23/25,692.72
  6. Step 6: Final answer
    x = 27,321.59

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1.5x scale

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.