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Finding the Fourth Proportional to 34,821.20, 52,231.80 and 10,197.20

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Solution

The fourth proportional to 34,821.20, 52,231.80 and 10,197.20 is: 15,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,821.20 : 52,231.80 = 10,197.20 : x
  2. Step 2: Convert to fraction form
    34,821.20/52,231.80 = 10,197.20/x
  3. Step 3: Cross multiply
    34,821.20x = 52,231.80 × 10,197.20
  4. Step 4: Simplify right side
    34,821.20x = 532,618,110.96
  5. Step 5: Solve for x
    x = 532,618,110.96/34,821.20
  6. Step 6: Final answer
    x = 15,295.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.