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Finding the Fourth Proportional to 10,188.60, 14,059.92 and 5,713.08

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Solution

The fourth proportional to 10,188.60, 14,059.92 and 5,713.08 is: 7,883.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,188.60 : 14,059.92 = 5,713.08 : x
  2. Step 2: Convert to fraction form
    10,188.60/14,059.92 = 5,713.08/x
  3. Step 3: Cross multiply
    10,188.60x = 14,059.92 × 5,713.08
  4. Step 4: Simplify right side
    10,188.60x = 80,325,447.75
  5. Step 5: Solve for x
    x = 80,325,447.75/10,188.60
  6. Step 6: Final answer
    x = 7,883.86

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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.