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Finding the Fourth Proportional to 14,796.42, 20,420.01 and 8,508.66

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Solution

The fourth proportional to 14,796.42, 20,420.01 and 8,508.66 is: 11,742.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,796.42 : 20,420.01 = 8,508.66 : x
  2. Step 2: Convert to fraction form
    14,796.42/20,420.01 = 8,508.66/x
  3. Step 3: Cross multiply
    14,796.42x = 20,420.01 × 8,508.66
  4. Step 4: Simplify right side
    14,796.42x = 173,746,922.29
  5. Step 5: Solve for x
    x = 173,746,922.29/14,796.42
  6. Step 6: Final answer
    x = 11,742.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.