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Finding the Fourth Proportional to 18,291.62, 25,247.63 and 10,738.24

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Solution

The fourth proportional to 18,291.62, 25,247.63 and 10,738.24 is: 14,821.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.62 : 25,247.63 = 10,738.24 : x
  2. Step 2: Convert to fraction form
    18,291.62/25,247.63 = 10,738.24/x
  3. Step 3: Cross multiply
    18,291.62x = 25,247.63 × 10,738.24
  4. Step 4: Simplify right side
    18,291.62x = 271,115,074.10
  5. Step 5: Solve for x
    x = 271,115,074.10/18,291.62
  6. Step 6: Final answer
    x = 14,821.82

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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.