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Finding the Fourth Proportional to 1,898.57, 2,620.01 and 1,059.27

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Solution

The fourth proportional to 1,898.57, 2,620.01 and 1,059.27 is: 1,461.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.57 : 2,620.01 = 1,059.27 : x
  2. Step 2: Convert to fraction form
    1,898.57/2,620.01 = 1,059.27/x
  3. Step 3: Cross multiply
    1,898.57x = 2,620.01 × 1,059.27
  4. Step 4: Simplify right side
    1,898.57x = 2,775,301.87
  5. Step 5: Solve for x
    x = 2,775,301.87/1,898.57
  6. Step 6: Final answer
    x = 1,461.79

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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.