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Finding the Fourth Proportional to 70,023.83, 96,629.09 and 39,805.02

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Solution

The fourth proportional to 70,023.83, 96,629.09 and 39,805.02 is: 54,928.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,023.83 : 96,629.09 = 39,805.02 : x
  2. Step 2: Convert to fraction form
    70,023.83/96,629.09 = 39,805.02/x
  3. Step 3: Cross multiply
    70,023.83x = 96,629.09 × 39,805.02
  4. Step 4: Simplify right side
    70,023.83x = 3,846,322,661.01
  5. Step 5: Solve for x
    x = 3,846,322,661.01/70,023.83
  6. Step 6: Final answer
    x = 54,928.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.