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Finding the Fourth Proportional to 70,241.58, 96,931.89 and 38,408.58

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Solution

The fourth proportional to 70,241.58, 96,931.89 and 38,408.58 is: 53,003.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,241.58 : 96,931.89 = 38,408.58 : x
  2. Step 2: Convert to fraction form
    70,241.58/96,931.89 = 38,408.58/x
  3. Step 3: Cross multiply
    70,241.58x = 96,931.89 × 38,408.58
  4. Step 4: Simplify right side
    70,241.58x = 3,723,016,251.62
  5. Step 5: Solve for x
    x = 3,723,016,251.62/70,241.58
  6. Step 6: Final answer
    x = 53,003.03

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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.