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Finding the Fourth Proportional to 70,682.83, 97,542.36 and 38,853.81

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Solution

The fourth proportional to 70,682.83, 97,542.36 and 38,853.81 is: 53,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,682.83 : 97,542.36 = 38,853.81 : x
  2. Step 2: Convert to fraction form
    70,682.83/97,542.36 = 38,853.81/x
  3. Step 3: Cross multiply
    70,682.83x = 97,542.36 × 38,853.81
  4. Step 4: Simplify right side
    70,682.83x = 3,789,892,322.39
  5. Step 5: Solve for x
    x = 3,789,892,322.39/70,682.83
  6. Step 6: Final answer
    x = 53,618.29

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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.