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Finding the Fourth Proportional to 70,086.42, 96,721.09 and 38,258.26

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Solution

The fourth proportional to 70,086.42, 96,721.09 and 38,258.26 is: 52,797.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,086.42 : 96,721.09 = 38,258.26 : x
  2. Step 2: Convert to fraction form
    70,086.42/96,721.09 = 38,258.26/x
  3. Step 3: Cross multiply
    70,086.42x = 96,721.09 × 38,258.26
  4. Step 4: Simplify right side
    70,086.42x = 3,700,380,608.70
  5. Step 5: Solve for x
    x = 3,700,380,608.70/70,086.42
  6. Step 6: Final answer
    x = 52,797.40

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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.