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Finding the Fourth Proportional to 66,702.06, 99,964.87 and 35,047.42

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Solution

The fourth proportional to 66,702.06, 99,964.87 and 35,047.42 is: 52,524.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,702.06 : 99,964.87 = 35,047.42 : x
  2. Step 2: Convert to fraction form
    66,702.06/99,964.87 = 35,047.42/x
  3. Step 3: Cross multiply
    66,702.06x = 99,964.87 × 35,047.42
  4. Step 4: Simplify right side
    66,702.06x = 3,503,510,446.60
  5. Step 5: Solve for x
    x = 3,503,510,446.60/66,702.06
  6. Step 6: Final answer
    x = 52,524.77

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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.