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Finding the Fourth Proportional to 64,012.56, 96,086.48 and 35,956.60

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Solution

The fourth proportional to 64,012.56, 96,086.48 and 35,956.60 is: 53,972.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,012.56 : 96,086.48 = 35,956.60 : x
  2. Step 2: Convert to fraction form
    64,012.56/96,086.48 = 35,956.60/x
  3. Step 3: Cross multiply
    64,012.56x = 96,086.48 × 35,956.60
  4. Step 4: Simplify right side
    64,012.56x = 3,454,943,126.77
  5. Step 5: Solve for x
    x = 3,454,943,126.77/64,012.56
  6. Step 6: Final answer
    x = 53,972.89

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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.