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Finding the Fourth Proportional to 12,494.64, 18,745.80 and 4,704.60

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Solution

The fourth proportional to 12,494.64, 18,745.80 and 4,704.60 is: 7,058.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,494.64 : 18,745.80 = 4,704.60 : x
  2. Step 2: Convert to fraction form
    12,494.64/18,745.80 = 4,704.60/x
  3. Step 3: Cross multiply
    12,494.64x = 18,745.80 × 4,704.60
  4. Step 4: Simplify right side
    12,494.64x = 88,191,490.68
  5. Step 5: Solve for x
    x = 88,191,490.68/12,494.64
  6. Step 6: Final answer
    x = 7,058.35

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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.