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Finding the Fourth Proportional to 3,751.48, 5,174.74 and 3,007.23

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Solution

The fourth proportional to 3,751.48, 5,174.74 and 3,007.23 is: 4,148.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.48 : 5,174.74 = 3,007.23 : x
  2. Step 2: Convert to fraction form
    3,751.48/5,174.74 = 3,007.23/x
  3. Step 3: Cross multiply
    3,751.48x = 5,174.74 × 3,007.23
  4. Step 4: Simplify right side
    3,751.48x = 15,561,633.37
  5. Step 5: Solve for x
    x = 15,561,633.37/3,751.48
  6. Step 6: Final answer
    x = 4,148.13

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1.5x scale

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.