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Finding the Fourth Proportional to 14,633.13, 20,193.60 and 7,918.62

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Solution

The fourth proportional to 14,633.13, 20,193.60 and 7,918.62 is: 10,927.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,633.13 : 20,193.60 = 7,918.62 : x
  2. Step 2: Convert to fraction form
    14,633.13/20,193.60 = 7,918.62/x
  3. Step 3: Cross multiply
    14,633.13x = 20,193.60 × 7,918.62
  4. Step 4: Simplify right side
    14,633.13x = 159,905,444.83
  5. Step 5: Solve for x
    x = 159,905,444.83/14,633.13
  6. Step 6: Final answer
    x = 10,927.63

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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.