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Finding the Fourth Proportional to 14,650.56, 20,219.22 and 8,363.88

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Solution

The fourth proportional to 14,650.56, 20,219.22 and 8,363.88 is: 11,542.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,650.56 : 20,219.22 = 8,363.88 : x
  2. Step 2: Convert to fraction form
    14,650.56/20,219.22 = 8,363.88/x
  3. Step 3: Cross multiply
    14,650.56x = 20,219.22 × 8,363.88
  4. Step 4: Simplify right side
    14,650.56x = 169,111,129.77
  5. Step 5: Solve for x
    x = 169,111,129.77/14,650.56
  6. Step 6: Final answer
    x = 11,542.98

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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.