Home / 53,556.76-80,279.40-17,991.69

Finding the Fourth Proportional to 53,556.76, 80,279.40 and 17,991.69

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Solution

The fourth proportional to 53,556.76, 80,279.40 and 17,991.69 is: 26,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,556.76 : 80,279.40 = 17,991.69 : x
  2. Step 2: Convert to fraction form
    53,556.76/80,279.40 = 17,991.69/x
  3. Step 3: Cross multiply
    53,556.76x = 80,279.40 × 17,991.69
  4. Step 4: Simplify right side
    53,556.76x = 1,444,362,078.19
  5. Step 5: Solve for x
    x = 1,444,362,078.19/53,556.76
  6. Step 6: Final answer
    x = 26,968.81

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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.