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Finding the Fourth Proportional to 18,644.08, 25,728.06 and 10,260.04

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Solution

The fourth proportional to 18,644.08, 25,728.06 and 10,260.04 is: 14,158.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.08 : 25,728.06 = 10,260.04 : x
  2. Step 2: Convert to fraction form
    18,644.08/25,728.06 = 10,260.04/x
  3. Step 3: Cross multiply
    18,644.08x = 25,728.06 × 10,260.04
  4. Step 4: Simplify right side
    18,644.08x = 263,970,924.72
  5. Step 5: Solve for x
    x = 263,970,924.72/18,644.08
  6. Step 6: Final answer
    x = 14,158.43

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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.