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Finding the Fourth Proportional to 69,965.37, 96,554.81 and 39,755.81

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Solution

The fourth proportional to 69,965.37, 96,554.81 and 39,755.81 is: 54,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,965.37 : 96,554.81 = 39,755.81 : x
  2. Step 2: Convert to fraction form
    69,965.37/96,554.81 = 39,755.81/x
  3. Step 3: Cross multiply
    69,965.37x = 96,554.81 × 39,755.81
  4. Step 4: Simplify right side
    69,965.37x = 3,838,615,021.72
  5. Step 5: Solve for x
    x = 3,838,615,021.72/69,965.37
  6. Step 6: Final answer
    x = 54,864.50

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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.