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Finding the Fourth Proportional to 18,453, 25,465.14 and 11,001

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Solution

The fourth proportional to 18,453, 25,465.14 and 11,001 is: 15,181.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453 : 25,465.14 = 11,001 : x
  2. Step 2: Convert to fraction form
    18,453/25,465.14 = 11,001/x
  3. Step 3: Cross multiply
    18,453x = 25,465.14 × 11,001
  4. Step 4: Simplify right side
    18,453x = 280,142,005.14
  5. Step 5: Solve for x
    x = 280,142,005.14/18,453
  6. Step 6: Final answer
    x = 15,181.38

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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.