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Finding the Fourth Proportional to 13,594.56, 18,771.11 and 8,816.77

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Solution

The fourth proportional to 13,594.56, 18,771.11 and 8,816.77 is: 12,174.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,594.56 : 18,771.11 = 8,816.77 : x
  2. Step 2: Convert to fraction form
    13,594.56/18,771.11 = 8,816.77/x
  3. Step 3: Cross multiply
    13,594.56x = 18,771.11 × 8,816.77
  4. Step 4: Simplify right side
    13,594.56x = 165,500,559.51
  5. Step 5: Solve for x
    x = 165,500,559.51/13,594.56
  6. Step 6: Final answer
    x = 12,174.03

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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.