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Finding the Fourth Proportional to 14,315.51, 21,474.73 and 4,955.51

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Solution

The fourth proportional to 14,315.51, 21,474.73 and 4,955.51 is: 7,433.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,315.51 : 21,474.73 = 4,955.51 : x
  2. Step 2: Convert to fraction form
    14,315.51/21,474.73 = 4,955.51/x
  3. Step 3: Cross multiply
    14,315.51x = 21,474.73 × 4,955.51
  4. Step 4: Simplify right side
    14,315.51x = 106,418,299.14
  5. Step 5: Solve for x
    x = 106,418,299.14/14,315.51
  6. Step 6: Final answer
    x = 7,433.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.