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Finding the Fourth Proportional to 66,977.40, 92,429.98 and 36,765.54

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Solution

The fourth proportional to 66,977.40, 92,429.98 and 36,765.54 is: 50,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,977.40 : 92,429.98 = 36,765.54 : x
  2. Step 2: Convert to fraction form
    66,977.40/92,429.98 = 36,765.54/x
  3. Step 3: Cross multiply
    66,977.40x = 92,429.98 × 36,765.54
  4. Step 4: Simplify right side
    66,977.40x = 3,398,238,126.89
  5. Step 5: Solve for x
    x = 3,398,238,126.89/66,977.40
  6. Step 6: Final answer
    x = 50,737.09

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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.