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Finding the Fourth Proportional to 3,903.54, 5,387.50 and 2,224.96

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Solution

The fourth proportional to 3,903.54, 5,387.50 and 2,224.96 is: 3,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.54 : 5,387.50 = 2,224.96 : x
  2. Step 2: Convert to fraction form
    3,903.54/5,387.50 = 2,224.96/x
  3. Step 3: Cross multiply
    3,903.54x = 5,387.50 × 2,224.96
  4. Step 4: Simplify right side
    3,903.54x = 11,986,972
  5. Step 5: Solve for x
    x = 11,986,972/3,903.54
  6. Step 6: Final answer
    x = 3,070.80

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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.