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Finding the Fourth Proportional to 66,896.34, 92,279.97 and 47,776.02

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Solution

The fourth proportional to 66,896.34, 92,279.97 and 47,776.02 is: 65,904.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,896.34 : 92,279.97 = 47,776.02 : x
  2. Step 2: Convert to fraction form
    66,896.34/92,279.97 = 47,776.02/x
  3. Step 3: Cross multiply
    66,896.34x = 92,279.97 × 47,776.02
  4. Step 4: Simplify right side
    66,896.34x = 4,408,769,692.32
  5. Step 5: Solve for x
    x = 4,408,769,692.32/66,896.34
  6. Step 6: Final answer
    x = 65,904.50

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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.