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Finding the Fourth Proportional to 2,522.59, 3,783.70 and 791.17

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Solution

The fourth proportional to 2,522.59, 3,783.70 and 791.17 is: 1,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,522.59 : 3,783.70 = 791.17 : x
  2. Step 2: Convert to fraction form
    2,522.59/3,783.70 = 791.17/x
  3. Step 3: Cross multiply
    2,522.59x = 3,783.70 × 791.17
  4. Step 4: Simplify right side
    2,522.59x = 2,993,549.93
  5. Step 5: Solve for x
    x = 2,993,549.93/2,522.59
  6. Step 6: Final answer
    x = 1,186.70

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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.