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Finding the Fourth Proportional to 70,894.63, 97,834.80 and 39,062.80

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Solution

The fourth proportional to 70,894.63, 97,834.80 and 39,062.80 is: 53,906.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,894.63 : 97,834.80 = 39,062.80 : x
  2. Step 2: Convert to fraction form
    70,894.63/97,834.80 = 39,062.80/x
  3. Step 3: Cross multiply
    70,894.63x = 97,834.80 × 39,062.80
  4. Step 4: Simplify right side
    70,894.63x = 3,821,701,225.44
  5. Step 5: Solve for x
    x = 3,821,701,225.44/70,894.63
  6. Step 6: Final answer
    x = 53,906.78

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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.