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Finding the Fourth Proportional to 9,792.69, 13,513.91 and 5,316.44

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Solution

The fourth proportional to 9,792.69, 13,513.91 and 5,316.44 is: 7,336.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,792.69 : 13,513.91 = 5,316.44 : x
  2. Step 2: Convert to fraction form
    9,792.69/13,513.91 = 5,316.44/x
  3. Step 3: Cross multiply
    9,792.69x = 13,513.91 × 5,316.44
  4. Step 4: Simplify right side
    9,792.69x = 71,845,837.40
  5. Step 5: Solve for x
    x = 71,845,837.40/9,792.69
  6. Step 6: Final answer
    x = 7,336.68

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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.