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Finding the Fourth Proportional to 66,862.80, 92,270.25 and 36,649.98

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Solution

The fourth proportional to 66,862.80, 92,270.25 and 36,649.98 is: 50,576.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,862.80 : 92,270.25 = 36,649.98 : x
  2. Step 2: Convert to fraction form
    66,862.80/92,270.25 = 36,649.98/x
  3. Step 3: Cross multiply
    66,862.80x = 92,270.25 × 36,649.98
  4. Step 4: Simplify right side
    66,862.80x = 3,381,702,817.10
  5. Step 5: Solve for x
    x = 3,381,702,817.10/66,862.80
  6. Step 6: Final answer
    x = 50,576.75

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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.