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Finding the Fourth Proportional to 60,785.84, 91,176.03 and 18,664.22

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Solution

The fourth proportional to 60,785.84, 91,176.03 and 18,664.22 is: 27,995.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,785.84 : 91,176.03 = 18,664.22 : x
  2. Step 2: Convert to fraction form
    60,785.84/91,176.03 = 18,664.22/x
  3. Step 3: Cross multiply
    60,785.84x = 91,176.03 × 18,664.22
  4. Step 4: Simplify right side
    60,785.84x = 1,701,729,710.59
  5. Step 5: Solve for x
    x = 1,701,729,710.59/60,785.84
  6. Step 6: Final answer
    x = 27,995.49

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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.