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Finding the Fourth Proportional to 18,466.16, 27,693.48 and 5,314.96

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Solution

The fourth proportional to 18,466.16, 27,693.48 and 5,314.96 is: 7,970.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466.16 : 27,693.48 = 5,314.96 : x
  2. Step 2: Convert to fraction form
    18,466.16/27,693.48 = 5,314.96/x
  3. Step 3: Cross multiply
    18,466.16x = 27,693.48 × 5,314.96
  4. Step 4: Simplify right side
    18,466.16x = 147,189,738.46
  5. Step 5: Solve for x
    x = 147,189,738.46/18,466.16
  6. Step 6: Final answer
    x = 7,970.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.