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Finding the Fourth Proportional to 13,596.72, 18,762.84 and 8,006.64

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Solution

The fourth proportional to 13,596.72, 18,762.84 and 8,006.64 is: 11,048.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,596.72 : 18,762.84 = 8,006.64 : x
  2. Step 2: Convert to fraction form
    13,596.72/18,762.84 = 8,006.64/x
  3. Step 3: Cross multiply
    13,596.72x = 18,762.84 × 8,006.64
  4. Step 4: Simplify right side
    13,596.72x = 150,227,305.26
  5. Step 5: Solve for x
    x = 150,227,305.26/13,596.72
  6. Step 6: Final answer
    x = 11,048.79

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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.