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Finding the Fourth Proportional to 70,232.45, 96,920.81 and 38,401.61

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Solution

The fourth proportional to 70,232.45, 96,920.81 and 38,401.61 is: 52,994.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,232.45 : 96,920.81 = 38,401.61 : x
  2. Step 2: Convert to fraction form
    70,232.45/96,920.81 = 38,401.61/x
  3. Step 3: Cross multiply
    70,232.45x = 96,920.81 × 38,401.61
  4. Step 4: Simplify right side
    70,232.45x = 3,721,914,469.89
  5. Step 5: Solve for x
    x = 3,721,914,469.89/70,232.45
  6. Step 6: Final answer
    x = 52,994.23

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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.