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Finding the Fourth Proportional to 14,499.00, 20,018.25 and 11,135.80

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Solution

The fourth proportional to 14,499.00, 20,018.25 and 11,135.80 is: 15,374.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,499.00 : 20,018.25 = 11,135.80 : x
  2. Step 2: Convert to fraction form
    14,499.00/20,018.25 = 11,135.80/x
  3. Step 3: Cross multiply
    14,499.00x = 20,018.25 × 11,135.80
  4. Step 4: Simplify right side
    14,499.00x = 222,919,228.35
  5. Step 5: Solve for x
    x = 222,919,228.35/14,499.00
  6. Step 6: Final answer
    x = 15,374.81

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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.