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Finding the Fourth Proportional to 18,692.64, 25,794.63 and 10,729.26

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Solution

The fourth proportional to 18,692.64, 25,794.63 and 10,729.26 is: 14,805.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.64 : 25,794.63 = 10,729.26 : x
  2. Step 2: Convert to fraction form
    18,692.64/25,794.63 = 10,729.26/x
  3. Step 3: Cross multiply
    18,692.64x = 25,794.63 × 10,729.26
  4. Step 4: Simplify right side
    18,692.64x = 276,757,291.87
  5. Step 5: Solve for x
    x = 276,757,291.87/18,692.64
  6. Step 6: Final answer
    x = 14,805.68

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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.