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Finding the Fourth Proportional to 70,847.82, 97,768.08 and 38,581.79

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Solution

The fourth proportional to 70,847.82, 97,768.08 and 38,581.79 is: 53,241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,847.82 : 97,768.08 = 38,581.79 : x
  2. Step 2: Convert to fraction form
    70,847.82/97,768.08 = 38,581.79/x
  3. Step 3: Cross multiply
    70,847.82x = 97,768.08 × 38,581.79
  4. Step 4: Simplify right side
    70,847.82x = 3,772,067,920.37
  5. Step 5: Solve for x
    x = 3,772,067,920.37/70,847.82
  6. Step 6: Final answer
    x = 53,241.84

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1.5x scale

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.