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Finding the Fourth Proportional to 60,786.84, 91,177.53 and 18,665.22

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Solution

The fourth proportional to 60,786.84, 91,177.53 and 18,665.22 is: 27,996.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,786.84 : 91,177.53 = 18,665.22 : x
  2. Step 2: Convert to fraction form
    60,786.84/91,177.53 = 18,665.22/x
  3. Step 3: Cross multiply
    60,786.84x = 91,177.53 × 18,665.22
  4. Step 4: Simplify right side
    60,786.84x = 1,701,848,656.51
  5. Step 5: Solve for x
    x = 1,701,848,656.51/60,786.84
  6. Step 6: Final answer
    x = 27,996.99

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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.