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Finding the Fourth Proportional to 15,608.54, 21,537.64 and 8,892.88

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Solution

The fourth proportional to 15,608.54, 21,537.64 and 8,892.88 is: 12,270.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,608.54 : 21,537.64 = 8,892.88 : x
  2. Step 2: Convert to fraction form
    15,608.54/21,537.64 = 8,892.88/x
  3. Step 3: Cross multiply
    15,608.54x = 21,537.64 × 8,892.88
  4. Step 4: Simplify right side
    15,608.54x = 191,531,648.00
  5. Step 5: Solve for x
    x = 191,531,648.00/15,608.54
  6. Step 6: Final answer
    x = 12,270.95

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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.