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Finding the Fourth Proportional to 70,924.85, 97,874.96 and 38,659.77

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Solution

The fourth proportional to 70,924.85, 97,874.96 and 38,659.77 is: 53,349.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,924.85 : 97,874.96 = 38,659.77 : x
  2. Step 2: Convert to fraction form
    70,924.85/97,874.96 = 38,659.77/x
  3. Step 3: Cross multiply
    70,924.85x = 97,874.96 × 38,659.77
  4. Step 4: Simplify right side
    70,924.85x = 3,783,823,249.06
  5. Step 5: Solve for x
    x = 3,783,823,249.06/70,924.85
  6. Step 6: Final answer
    x = 53,349.76

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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.