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Finding the Fourth Proportional to 53,958.51, 80,888.46 and 18,879.03

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Solution

The fourth proportional to 53,958.51, 80,888.46 and 18,879.03 is: 28,301.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,958.51 : 80,888.46 = 18,879.03 : x
  2. Step 2: Convert to fraction form
    53,958.51/80,888.46 = 18,879.03/x
  3. Step 3: Cross multiply
    53,958.51x = 80,888.46 × 18,879.03
  4. Step 4: Simplify right side
    53,958.51x = 1,527,095,662.99
  5. Step 5: Solve for x
    x = 1,527,095,662.99/53,958.51
  6. Step 6: Final answer
    x = 28,301.29

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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.