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Finding the Fourth Proportional to 2,698.07, 4,046.76 and 750.42

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Solution

The fourth proportional to 2,698.07, 4,046.76 and 750.42 is: 1,125.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.07 : 4,046.76 = 750.42 : x
  2. Step 2: Convert to fraction form
    2,698.07/4,046.76 = 750.42/x
  3. Step 3: Cross multiply
    2,698.07x = 4,046.76 × 750.42
  4. Step 4: Simplify right side
    2,698.07x = 3,036,769.64
  5. Step 5: Solve for x
    x = 3,036,769.64/2,698.07
  6. Step 6: Final answer
    x = 1,125.54

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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.