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Finding the Fourth Proportional to 2,698.74, 4,048.39 and 750.95

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Solution

The fourth proportional to 2,698.74, 4,048.39 and 750.95 is: 1,126.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.74 : 4,048.39 = 750.95 : x
  2. Step 2: Convert to fraction form
    2,698.74/4,048.39 = 750.95/x
  3. Step 3: Cross multiply
    2,698.74x = 4,048.39 × 750.95
  4. Step 4: Simplify right side
    2,698.74x = 3,040,131.53
  5. Step 5: Solve for x
    x = 3,040,131.53/2,698.74
  6. Step 6: Final answer
    x = 1,126.50

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1.5x scale

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.