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Finding the Fourth Proportional to 13,432.74, 18,524.30 and 8,054.34

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Solution

The fourth proportional to 13,432.74, 18,524.30 and 8,054.34 is: 11,107.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.74 : 18,524.30 = 8,054.34 : x
  2. Step 2: Convert to fraction form
    13,432.74/18,524.30 = 8,054.34/x
  3. Step 3: Cross multiply
    13,432.74x = 18,524.30 × 8,054.34
  4. Step 4: Simplify right side
    13,432.74x = 149,200,900.72
  5. Step 5: Solve for x
    x = 149,200,900.72/13,432.74
  6. Step 6: Final answer
    x = 11,107.26

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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.