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Finding the Fourth Proportional to 2,241.61, 3,362.54 and 681.67

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Solution

The fourth proportional to 2,241.61, 3,362.54 and 681.67 is: 1,022.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,241.61 : 3,362.54 = 681.67 : x
  2. Step 2: Convert to fraction form
    2,241.61/3,362.54 = 681.67/x
  3. Step 3: Cross multiply
    2,241.61x = 3,362.54 × 681.67
  4. Step 4: Simplify right side
    2,241.61x = 2,292,130.75
  5. Step 5: Solve for x
    x = 2,292,130.75/2,241.61
  6. Step 6: Final answer
    x = 1,022.54

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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.