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Finding the Fourth Proportional to 18,753.24, 25,885.05 and 10,801.05

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Solution

The fourth proportional to 18,753.24, 25,885.05 and 10,801.05 is: 14,908.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.24 : 25,885.05 = 10,801.05 : x
  2. Step 2: Convert to fraction form
    18,753.24/25,885.05 = 10,801.05/x
  3. Step 3: Cross multiply
    18,753.24x = 25,885.05 × 10,801.05
  4. Step 4: Simplify right side
    18,753.24x = 279,585,719.30
  5. Step 5: Solve for x
    x = 279,585,719.30/18,753.24
  6. Step 6: Final answer
    x = 14,908.66

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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.