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Finding the Fourth Proportional to 70,862.46, 97,786.44 and 39,025.32

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Solution

The fourth proportional to 70,862.46, 97,786.44 and 39,025.32 is: 53,852.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,862.46 : 97,786.44 = 39,025.32 : x
  2. Step 2: Convert to fraction form
    70,862.46/97,786.44 = 39,025.32/x
  3. Step 3: Cross multiply
    70,862.46x = 97,786.44 × 39,025.32
  4. Step 4: Simplify right side
    70,862.46x = 3,816,147,112.66
  5. Step 5: Solve for x
    x = 3,816,147,112.66/70,862.46
  6. Step 6: Final answer
    x = 53,852.87

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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.