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Finding the Fourth Proportional to 53,362.44, 80,043.63 and 13,919.44

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Solution

The fourth proportional to 53,362.44, 80,043.63 and 13,919.44 is: 20,879.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,362.44 : 80,043.63 = 13,919.44 : x
  2. Step 2: Convert to fraction form
    53,362.44/80,043.63 = 13,919.44/x
  3. Step 3: Cross multiply
    53,362.44x = 80,043.63 × 13,919.44
  4. Step 4: Simplify right side
    53,362.44x = 1,114,162,505.17
  5. Step 5: Solve for x
    x = 1,114,162,505.17/53,362.44
  6. Step 6: Final answer
    x = 20,879.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.