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Finding the Fourth Proportional to 13,960.53, 19,265.13 and 7,672.89

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Solution

The fourth proportional to 13,960.53, 19,265.13 and 7,672.89 is: 10,588.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,960.53 : 19,265.13 = 7,672.89 : x
  2. Step 2: Convert to fraction form
    13,960.53/19,265.13 = 7,672.89/x
  3. Step 3: Cross multiply
    13,960.53x = 19,265.13 × 7,672.89
  4. Step 4: Simplify right side
    13,960.53x = 147,819,223.33
  5. Step 5: Solve for x
    x = 147,819,223.33/13,960.53
  6. Step 6: Final answer
    x = 10,588.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.