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Finding the Fourth Proportional to 18,080.83, 24,945.73 and 11,712.30

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Solution

The fourth proportional to 18,080.83, 24,945.73 and 11,712.30 is: 16,159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,080.83 : 24,945.73 = 11,712.30 : x
  2. Step 2: Convert to fraction form
    18,080.83/24,945.73 = 11,712.30/x
  3. Step 3: Cross multiply
    18,080.83x = 24,945.73 × 11,712.30
  4. Step 4: Simplify right side
    18,080.83x = 292,171,816.53
  5. Step 5: Solve for x
    x = 292,171,816.53/18,080.83
  6. Step 6: Final answer
    x = 16,159.21

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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.