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Finding the Fourth Proportional to 1,898.73, 2,620.24 and 1,059.43

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Solution

The fourth proportional to 1,898.73, 2,620.24 and 1,059.43 is: 1,462.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.73 : 2,620.24 = 1,059.43 : x
  2. Step 2: Convert to fraction form
    1,898.73/2,620.24 = 1,059.43/x
  3. Step 3: Cross multiply
    1,898.73x = 2,620.24 × 1,059.43
  4. Step 4: Simplify right side
    1,898.73x = 2,775,960.86
  5. Step 5: Solve for x
    x = 2,775,960.86/1,898.73
  6. Step 6: Final answer
    x = 1,462.01

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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.