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Finding the Fourth Proportional to 70,040.84, 96,652.44 and 39,821.88

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Solution

The fourth proportional to 70,040.84, 96,652.44 and 39,821.88 is: 54,951.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,040.84 : 96,652.44 = 39,821.88 : x
  2. Step 2: Convert to fraction form
    70,040.84/96,652.44 = 39,821.88/x
  3. Step 3: Cross multiply
    70,040.84x = 96,652.44 × 39,821.88
  4. Step 4: Simplify right side
    70,040.84x = 3,848,881,867.39
  5. Step 5: Solve for x
    x = 3,848,881,867.39/70,040.84
  6. Step 6: Final answer
    x = 54,951.97

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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.