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Finding the Fourth Proportional to 11,353.60, 15,667.71 and 6,317.63

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Solution

The fourth proportional to 11,353.60, 15,667.71 and 6,317.63 is: 8,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,353.60 : 15,667.71 = 6,317.63 : x
  2. Step 2: Convert to fraction form
    11,353.60/15,667.71 = 6,317.63/x
  3. Step 3: Cross multiply
    11,353.60x = 15,667.71 × 6,317.63
  4. Step 4: Simplify right side
    11,353.60x = 98,982,716.39
  5. Step 5: Solve for x
    x = 98,982,716.39/11,353.60
  6. Step 6: Final answer
    x = 8,718.18

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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.