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Finding the Fourth Proportional to 8,996.86, 12,389.72 and 8,969.52

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Solution

The fourth proportional to 8,996.86, 12,389.72 and 8,969.52 is: 12,352.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,996.86 : 12,389.72 = 8,969.52 : x
  2. Step 2: Convert to fraction form
    8,996.86/12,389.72 = 8,969.52/x
  3. Step 3: Cross multiply
    8,996.86x = 12,389.72 × 8,969.52
  4. Step 4: Simplify right side
    8,996.86x = 111,129,841.33
  5. Step 5: Solve for x
    x = 111,129,841.33/8,996.86
  6. Step 6: Final answer
    x = 12,352.07

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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.