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Finding the Fourth Proportional to 15,310.77, 21,128.67 and 8,596.22

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Solution

The fourth proportional to 15,310.77, 21,128.67 and 8,596.22 is: 11,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.77 : 21,128.67 = 8,596.22 : x
  2. Step 2: Convert to fraction form
    15,310.77/21,128.67 = 8,596.22/x
  3. Step 3: Cross multiply
    15,310.77x = 21,128.67 × 8,596.22
  4. Step 4: Simplify right side
    15,310.77x = 181,626,695.63
  5. Step 5: Solve for x
    x = 181,626,695.63/15,310.77
  6. Step 6: Final answer
    x = 11,862.68

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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.