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Finding the Fourth Proportional to 25,348.92, 34,989 and 16,396.80

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Solution

The fourth proportional to 25,348.92, 34,989 and 16,396.80 is: 22,632.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,348.92 : 34,989 = 16,396.80 : x
  2. Step 2: Convert to fraction form
    25,348.92/34,989 = 16,396.80/x
  3. Step 3: Cross multiply
    25,348.92x = 34,989 × 16,396.80
  4. Step 4: Simplify right side
    25,348.92x = 573,707,635.20
  5. Step 5: Solve for x
    x = 573,707,635.20/25,348.92
  6. Step 6: Final answer
    x = 22,632.43

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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.