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Finding the Fourth Proportional to 14,992.56, 20,692.26 and 8,708.58

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Solution

The fourth proportional to 14,992.56, 20,692.26 and 8,708.58 is: 12,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,992.56 : 20,692.26 = 8,708.58 : x
  2. Step 2: Convert to fraction form
    14,992.56/20,692.26 = 8,708.58/x
  3. Step 3: Cross multiply
    14,992.56x = 20,692.26 × 8,708.58
  4. Step 4: Simplify right side
    14,992.56x = 180,200,201.59
  5. Step 5: Solve for x
    x = 180,200,201.59/14,992.56
  6. Step 6: Final answer
    x = 12,019.31

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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.