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Finding the Fourth Proportional to 1,648.98, 2,274.97 and 1,059.86

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Solution

The fourth proportional to 1,648.98, 2,274.97 and 1,059.86 is: 1,462.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,648.98 : 2,274.97 = 1,059.86 : x
  2. Step 2: Convert to fraction form
    1,648.98/2,274.97 = 1,059.86/x
  3. Step 3: Cross multiply
    1,648.98x = 2,274.97 × 1,059.86
  4. Step 4: Simplify right side
    1,648.98x = 2,411,149.70
  5. Step 5: Solve for x
    x = 2,411,149.70/1,648.98
  6. Step 6: Final answer
    x = 1,462.21

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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.