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Finding the Fourth Proportional to 40,090.51, 55,324.07 and 22,185.51

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Solution

The fourth proportional to 40,090.51, 55,324.07 and 22,185.51 is: 30,615.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,090.51 : 55,324.07 = 22,185.51 : x
  2. Step 2: Convert to fraction form
    40,090.51/55,324.07 = 22,185.51/x
  3. Step 3: Cross multiply
    40,090.51x = 55,324.07 × 22,185.51
  4. Step 4: Simplify right side
    40,090.51x = 1,227,392,708.23
  5. Step 5: Solve for x
    x = 1,227,392,708.23/40,090.51
  6. Step 6: Final answer
    x = 30,615.54

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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.