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Finding the Fourth Proportional to 12,494.60, 18,745.16 and 3,729.52

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Solution

The fourth proportional to 12,494.60, 18,745.16 and 3,729.52 is: 5,595.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,494.60 : 18,745.16 = 3,729.52 : x
  2. Step 2: Convert to fraction form
    12,494.60/18,745.16 = 3,729.52/x
  3. Step 3: Cross multiply
    12,494.60x = 18,745.16 × 3,729.52
  4. Step 4: Simplify right side
    12,494.60x = 69,910,383.61
  5. Step 5: Solve for x
    x = 69,910,383.61/12,494.60
  6. Step 6: Final answer
    x = 5,595.25

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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.