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Finding the Fourth Proportional to 1,937.75, 2,674.08 and 1,053.55

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Solution

The fourth proportional to 1,937.75, 2,674.08 and 1,053.55 is: 1,453.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937.75 : 2,674.08 = 1,053.55 : x
  2. Step 2: Convert to fraction form
    1,937.75/2,674.08 = 1,053.55/x
  3. Step 3: Cross multiply
    1,937.75x = 2,674.08 × 1,053.55
  4. Step 4: Simplify right side
    1,937.75x = 2,817,286.30
  5. Step 5: Solve for x
    x = 2,817,286.30/1,937.75
  6. Step 6: Final answer
    x = 1,453.89

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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.