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Finding the Fourth Proportional to 2,668.75, 3,681.08 and 1,737.25

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Solution

The fourth proportional to 2,668.75, 3,681.08 and 1,737.25 is: 2,396.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.75 : 3,681.08 = 1,737.25 : x
  2. Step 2: Convert to fraction form
    2,668.75/3,681.08 = 1,737.25/x
  3. Step 3: Cross multiply
    2,668.75x = 3,681.08 × 1,737.25
  4. Step 4: Simplify right side
    2,668.75x = 6,394,944.86
  5. Step 5: Solve for x
    x = 6,394,944.86/2,668.75
  6. Step 6: Final answer
    x = 2,396.23

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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.