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Finding the Fourth Proportional to 18,803.83, 25,949.27 and 11,250.47

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Solution

The fourth proportional to 18,803.83, 25,949.27 and 11,250.47 is: 15,525.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803.83 : 25,949.27 = 11,250.47 : x
  2. Step 2: Convert to fraction form
    18,803.83/25,949.27 = 11,250.47/x
  3. Step 3: Cross multiply
    18,803.83x = 25,949.27 × 11,250.47
  4. Step 4: Simplify right side
    18,803.83x = 291,941,297.66
  5. Step 5: Solve for x
    x = 291,941,297.66/18,803.83
  6. Step 6: Final answer
    x = 15,525.63

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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.