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Finding the Fourth Proportional to 14,687.85, 20,262.51 and 10,222.25

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Solution

The fourth proportional to 14,687.85, 20,262.51 and 10,222.25 is: 14,102.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.85 : 20,262.51 = 10,222.25 : x
  2. Step 2: Convert to fraction form
    14,687.85/20,262.51 = 10,222.25/x
  3. Step 3: Cross multiply
    14,687.85x = 20,262.51 × 10,222.25
  4. Step 4: Simplify right side
    14,687.85x = 207,128,442.85
  5. Step 5: Solve for x
    x = 207,128,442.85/14,687.85
  6. Step 6: Final answer
    x = 14,102.03

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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.