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Finding the Fourth Proportional to 14,971.66, 20,661.04 and 8,257.52

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Solution

The fourth proportional to 14,971.66, 20,661.04 and 8,257.52 is: 11,395.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,971.66 : 20,661.04 = 8,257.52 : x
  2. Step 2: Convert to fraction form
    14,971.66/20,661.04 = 8,257.52/x
  3. Step 3: Cross multiply
    14,971.66x = 20,661.04 × 8,257.52
  4. Step 4: Simplify right side
    14,971.66x = 170,608,951.02
  5. Step 5: Solve for x
    x = 170,608,951.02/14,971.66
  6. Step 6: Final answer
    x = 11,395.46

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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.