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Finding the Fourth Proportional to 5,017.54, 7,520.64 and 3,781.08

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Solution

The fourth proportional to 5,017.54, 7,520.64 and 3,781.08 is: 5,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,017.54 : 7,520.64 = 3,781.08 : x
  2. Step 2: Convert to fraction form
    5,017.54/7,520.64 = 3,781.08/x
  3. Step 3: Cross multiply
    5,017.54x = 7,520.64 × 3,781.08
  4. Step 4: Simplify right side
    5,017.54x = 28,436,103.89
  5. Step 5: Solve for x
    x = 28,436,103.89/5,017.54
  6. Step 6: Final answer
    x = 5,667.34

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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.