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Finding the Fourth Proportional to 3,513.62, 4,849 and 1,941.68

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Solution

The fourth proportional to 3,513.62, 4,849 and 1,941.68 is: 2,679.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.62 : 4,849 = 1,941.68 : x
  2. Step 2: Convert to fraction form
    3,513.62/4,849 = 1,941.68/x
  3. Step 3: Cross multiply
    3,513.62x = 4,849 × 1,941.68
  4. Step 4: Simplify right side
    3,513.62x = 9,415,206.32
  5. Step 5: Solve for x
    x = 9,415,206.32/3,513.62
  6. Step 6: Final answer
    x = 2,679.63

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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.