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Finding the Fourth Proportional to 18,752.58, 25,879.11 and 10,255.20

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Solution

The fourth proportional to 18,752.58, 25,879.11 and 10,255.20 is: 14,152.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.58 : 25,879.11 = 10,255.20 : x
  2. Step 2: Convert to fraction form
    18,752.58/25,879.11 = 10,255.20/x
  3. Step 3: Cross multiply
    18,752.58x = 25,879.11 × 10,255.20
  4. Step 4: Simplify right side
    18,752.58x = 265,395,448.87
  5. Step 5: Solve for x
    x = 265,395,448.87/18,752.58
  6. Step 6: Final answer
    x = 14,152.48

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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.