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Finding the Fourth Proportional to 14,690.11, 20,272.28 and 7,975.68

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Solution

The fourth proportional to 14,690.11, 20,272.28 and 7,975.68 is: 11,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,690.11 : 20,272.28 = 7,975.68 : x
  2. Step 2: Convert to fraction form
    14,690.11/20,272.28 = 7,975.68/x
  3. Step 3: Cross multiply
    14,690.11x = 20,272.28 × 7,975.68
  4. Step 4: Simplify right side
    14,690.11x = 161,685,218.15
  5. Step 5: Solve for x
    x = 161,685,218.15/14,690.11
  6. Step 6: Final answer
    x = 11,006.40

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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.