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Finding the Fourth Proportional to 3,616.11, 4,986.99 and 3,012.47

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Solution

The fourth proportional to 3,616.11, 4,986.99 and 3,012.47 is: 4,154.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.11 : 4,986.99 = 3,012.47 : x
  2. Step 2: Convert to fraction form
    3,616.11/4,986.99 = 3,012.47/x
  3. Step 3: Cross multiply
    3,616.11x = 4,986.99 × 3,012.47
  4. Step 4: Simplify right side
    3,616.11x = 15,023,132.83
  5. Step 5: Solve for x
    x = 15,023,132.83/3,616.11
  6. Step 6: Final answer
    x = 4,154.50

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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.