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Finding the Fourth Proportional to 66,422.36, 99,692.03 and 34,854.98

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Solution

The fourth proportional to 66,422.36, 99,692.03 and 34,854.98 is: 52,313.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,422.36 : 99,692.03 = 34,854.98 : x
  2. Step 2: Convert to fraction form
    66,422.36/99,692.03 = 34,854.98/x
  3. Step 3: Cross multiply
    66,422.36x = 99,692.03 × 34,854.98
  4. Step 4: Simplify right side
    66,422.36x = 3,474,763,300.49
  5. Step 5: Solve for x
    x = 3,474,763,300.49/66,422.36
  6. Step 6: Final answer
    x = 52,313.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.