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Finding the Fourth Proportional to 66,797.28, 92,180.22 and 36,989.28

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Solution

The fourth proportional to 66,797.28, 92,180.22 and 36,989.28 is: 51,045.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,797.28 : 92,180.22 = 36,989.28 : x
  2. Step 2: Convert to fraction form
    66,797.28/92,180.22 = 36,989.28/x
  3. Step 3: Cross multiply
    66,797.28x = 92,180.22 × 36,989.28
  4. Step 4: Simplify right side
    66,797.28x = 3,409,679,968.04
  5. Step 5: Solve for x
    x = 3,409,679,968.04/66,797.28
  6. Step 6: Final answer
    x = 51,045.19

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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.