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Finding the Fourth Proportional to 55,661, 83,496.36 and 14,108

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Solution

The fourth proportional to 55,661, 83,496.36 and 14,108 is: 21,163.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,661 : 83,496.36 = 14,108 : x
  2. Step 2: Convert to fraction form
    55,661/83,496.36 = 14,108/x
  3. Step 3: Cross multiply
    55,661x = 83,496.36 × 14,108
  4. Step 4: Simplify right side
    55,661x = 1,177,966,646.88
  5. Step 5: Solve for x
    x = 1,177,966,646.88/55,661
  6. Step 6: Final answer
    x = 21,163.23

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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.