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Finding the Fourth Proportional to 18,255.92, 25,193.40 and 10,297.40

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Solution

The fourth proportional to 18,255.92, 25,193.40 and 10,297.40 is: 14,210.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.92 : 25,193.40 = 10,297.40 : x
  2. Step 2: Convert to fraction form
    18,255.92/25,193.40 = 10,297.40/x
  3. Step 3: Cross multiply
    18,255.92x = 25,193.40 × 10,297.40
  4. Step 4: Simplify right side
    18,255.92x = 259,426,517.16
  5. Step 5: Solve for x
    x = 259,426,517.16/18,255.92
  6. Step 6: Final answer
    x = 14,210.54

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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.