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Finding the Fourth Proportional to 66,706.06, 99,970.86 and 35,051.42

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Solution

The fourth proportional to 66,706.06, 99,970.86 and 35,051.42 is: 52,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,706.06 : 99,970.86 = 35,051.42 : x
  2. Step 2: Convert to fraction form
    66,706.06/99,970.86 = 35,051.42/x
  3. Step 3: Cross multiply
    66,706.06x = 99,970.86 × 35,051.42
  4. Step 4: Simplify right side
    66,706.06x = 3,504,120,601.62
  5. Step 5: Solve for x
    x = 3,504,120,601.62/66,706.06
  6. Step 6: Final answer
    x = 52,530.77

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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.