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Finding the Fourth Proportional to 14,796.22, 20,419.39 and 8,508.60

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Solution

The fourth proportional to 14,796.22, 20,419.39 and 8,508.60 is: 11,742.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,796.22 : 20,419.39 = 8,508.60 : x
  2. Step 2: Convert to fraction form
    14,796.22/20,419.39 = 8,508.60/x
  3. Step 3: Cross multiply
    14,796.22x = 20,419.39 × 8,508.60
  4. Step 4: Simplify right side
    14,796.22x = 173,740,319.66
  5. Step 5: Solve for x
    x = 173,740,319.66/14,796.22
  6. Step 6: Final answer
    x = 11,742.21

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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.