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Finding the Fourth Proportional to 10,944, 16,418.43 and 4,018.50

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Solution

The fourth proportional to 10,944, 16,418.43 and 4,018.50 is: 6,028.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,944 : 16,418.43 = 4,018.50 : x
  2. Step 2: Convert to fraction form
    10,944/16,418.43 = 4,018.50/x
  3. Step 3: Cross multiply
    10,944x = 16,418.43 × 4,018.50
  4. Step 4: Simplify right side
    10,944x = 65,977,460.96
  5. Step 5: Solve for x
    x = 65,977,460.96/10,944
  6. Step 6: Final answer
    x = 6,028.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.