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Finding the Fourth Proportional to 14,832.53, 20,468.54 and 8,118.15

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Solution

The fourth proportional to 14,832.53, 20,468.54 and 8,118.15 is: 11,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,832.53 : 20,468.54 = 8,118.15 : x
  2. Step 2: Convert to fraction form
    14,832.53/20,468.54 = 8,118.15/x
  3. Step 3: Cross multiply
    14,832.53x = 20,468.54 × 8,118.15
  4. Step 4: Simplify right side
    14,832.53x = 166,166,698.30
  5. Step 5: Solve for x
    x = 166,166,698.30/14,832.53
  6. Step 6: Final answer
    x = 11,202.85

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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.