Home / 13,072.75-19,610.43-3,713.20

Finding the Fourth Proportional to 13,072.75, 19,610.43 and 3,713.20

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Solution

The fourth proportional to 13,072.75, 19,610.43 and 3,713.20 is: 5,570.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.75 : 19,610.43 = 3,713.20 : x
  2. Step 2: Convert to fraction form
    13,072.75/19,610.43 = 3,713.20/x
  3. Step 3: Cross multiply
    13,072.75x = 19,610.43 × 3,713.20
  4. Step 4: Simplify right side
    13,072.75x = 72,817,448.68
  5. Step 5: Solve for x
    x = 72,817,448.68/13,072.75
  6. Step 6: Final answer
    x = 5,570.17

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Why These Related Problems?

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