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Finding the Fourth Proportional to 5,448.90, 7,523.09 and 4,187.67

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Solution

The fourth proportional to 5,448.90, 7,523.09 and 4,187.67 is: 5,781.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,448.90 : 7,523.09 = 4,187.67 : x
  2. Step 2: Convert to fraction form
    5,448.90/7,523.09 = 4,187.67/x
  3. Step 3: Cross multiply
    5,448.90x = 7,523.09 × 4,187.67
  4. Step 4: Simplify right side
    5,448.90x = 31,504,197.36
  5. Step 5: Solve for x
    x = 31,504,197.36/5,448.90
  6. Step 6: Final answer
    x = 5,781.75

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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.