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Finding the Fourth Proportional to 12,606.11, 18,909.16 and 3,841.02

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Solution

The fourth proportional to 12,606.11, 18,909.16 and 3,841.02 is: 5,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606.11 : 18,909.16 = 3,841.02 : x
  2. Step 2: Convert to fraction form
    12,606.11/18,909.16 = 3,841.02/x
  3. Step 3: Cross multiply
    12,606.11x = 18,909.16 × 3,841.02
  4. Step 4: Simplify right side
    12,606.11x = 72,630,442.54
  5. Step 5: Solve for x
    x = 72,630,442.54/12,606.11
  6. Step 6: Final answer
    x = 5,761.53

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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.