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Finding the Fourth Proportional to 70,035.70, 96,657.33 and 38,994.07

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Solution

The fourth proportional to 70,035.70, 96,657.33 and 38,994.07 is: 53,816.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,035.70 : 96,657.33 = 38,994.07 : x
  2. Step 2: Convert to fraction form
    70,035.70/96,657.33 = 38,994.07/x
  3. Step 3: Cross multiply
    70,035.70x = 96,657.33 × 38,994.07
  4. Step 4: Simplify right side
    70,035.70x = 3,769,062,692.03
  5. Step 5: Solve for x
    x = 3,769,062,692.03/70,035.70
  6. Step 6: Final answer
    x = 53,816.31

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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.