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Finding the Fourth Proportional to 13,633.36, 18,826.36 and 8,606.48

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Solution

The fourth proportional to 13,633.36, 18,826.36 and 8,606.48 is: 11,884.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.36 : 18,826.36 = 8,606.48 : x
  2. Step 2: Convert to fraction form
    13,633.36/18,826.36 = 8,606.48/x
  3. Step 3: Cross multiply
    13,633.36x = 18,826.36 × 8,606.48
  4. Step 4: Simplify right side
    13,633.36x = 162,028,690.81
  5. Step 5: Solve for x
    x = 162,028,690.81/13,633.36
  6. Step 6: Final answer
    x = 11,884.72

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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.