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Finding the Fourth Proportional to 62,894.28, 86,794.32 and 34,213.92

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Solution

The fourth proportional to 62,894.28, 86,794.32 and 34,213.92 is: 47,215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,894.28 : 86,794.32 = 34,213.92 : x
  2. Step 2: Convert to fraction form
    62,894.28/86,794.32 = 34,213.92/x
  3. Step 3: Cross multiply
    62,894.28x = 86,794.32 × 34,213.92
  4. Step 4: Simplify right side
    62,894.28x = 2,969,573,920.93
  5. Step 5: Solve for x
    x = 2,969,573,920.93/62,894.28
  6. Step 6: Final answer
    x = 47,215.33

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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.