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Finding the Fourth Proportional to 3,952.99, 5,455.45 and 2,184.63

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Solution

The fourth proportional to 3,952.99, 5,455.45 and 2,184.63 is: 3,014.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.99 : 5,455.45 = 2,184.63 : x
  2. Step 2: Convert to fraction form
    3,952.99/5,455.45 = 2,184.63/x
  3. Step 3: Cross multiply
    3,952.99x = 5,455.45 × 2,184.63
  4. Step 4: Simplify right side
    3,952.99x = 11,918,139.73
  5. Step 5: Solve for x
    x = 11,918,139.73/3,952.99
  6. Step 6: Final answer
    x = 3,014.97

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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.