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Finding the Fourth Proportional to 66,963.02, 92,408.64 and 36,747.50

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Solution

The fourth proportional to 66,963.02, 92,408.64 and 36,747.50 is: 50,711.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,963.02 : 92,408.64 = 36,747.50 : x
  2. Step 2: Convert to fraction form
    66,963.02/92,408.64 = 36,747.50/x
  3. Step 3: Cross multiply
    66,963.02x = 92,408.64 × 36,747.50
  4. Step 4: Simplify right side
    66,963.02x = 3,395,786,498.40
  5. Step 5: Solve for x
    x = 3,395,786,498.40/66,963.02
  6. Step 6: Final answer
    x = 50,711.37

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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.