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Finding the Fourth Proportional to 18,137.88, 25,023.12 and 10,476.09

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Solution

The fourth proportional to 18,137.88, 25,023.12 and 10,476.09 is: 14,452.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,137.88 : 25,023.12 = 10,476.09 : x
  2. Step 2: Convert to fraction form
    18,137.88/25,023.12 = 10,476.09/x
  3. Step 3: Cross multiply
    18,137.88x = 25,023.12 × 10,476.09
  4. Step 4: Simplify right side
    18,137.88x = 262,144,457.20
  5. Step 5: Solve for x
    x = 262,144,457.20/18,137.88
  6. Step 6: Final answer
    x = 14,452.87

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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.