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Finding the Fourth Proportional to 13,633.95, 20,449.85 and 4,867.95

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Solution

The fourth proportional to 13,633.95, 20,449.85 and 4,867.95 is: 7,301.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.95 : 20,449.85 = 4,867.95 : x
  2. Step 2: Convert to fraction form
    13,633.95/20,449.85 = 4,867.95/x
  3. Step 3: Cross multiply
    13,633.95x = 20,449.85 × 4,867.95
  4. Step 4: Simplify right side
    13,633.95x = 99,548,822.97
  5. Step 5: Solve for x
    x = 99,548,822.97/13,633.95
  6. Step 6: Final answer
    x = 7,301.54

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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.