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Finding the Fourth Proportional to 59,991.36, 90,047.70 and 35,079

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Solution

The fourth proportional to 59,991.36, 90,047.70 and 35,079 is: 52,653.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,991.36 : 90,047.70 = 35,079 : x
  2. Step 2: Convert to fraction form
    59,991.36/90,047.70 = 35,079/x
  3. Step 3: Cross multiply
    59,991.36x = 90,047.70 × 35,079
  4. Step 4: Simplify right side
    59,991.36x = 3,158,783,268.30
  5. Step 5: Solve for x
    x = 3,158,783,268.30/59,991.36
  6. Step 6: Final answer
    x = 52,653.97

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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.