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Finding the Fourth Proportional to 69,996.76, 105,071.68 and 36,707.88

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Solution

The fourth proportional to 69,996.76, 105,071.68 and 36,707.88 is: 55,101.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,996.76 : 105,071.68 = 36,707.88 : x
  2. Step 2: Convert to fraction form
    69,996.76/105,071.68 = 36,707.88/x
  3. Step 3: Cross multiply
    69,996.76x = 105,071.68 × 36,707.88
  4. Step 4: Simplify right side
    69,996.76x = 3,856,959,060.74
  5. Step 5: Solve for x
    x = 3,856,959,060.74/69,996.76
  6. Step 6: Final answer
    x = 55,101.97

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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.