Home / 33,090.75-45,665.28-18,186.75

Finding the Fourth Proportional to 33,090.75, 45,665.28 and 18,186.75

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Solution

The fourth proportional to 33,090.75, 45,665.28 and 18,186.75 is: 25,097.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,090.75 : 45,665.28 = 18,186.75 : x
  2. Step 2: Convert to fraction form
    33,090.75/45,665.28 = 18,186.75/x
  3. Step 3: Cross multiply
    33,090.75x = 45,665.28 × 18,186.75
  4. Step 4: Simplify right side
    33,090.75x = 830,503,031.04
  5. Step 5: Solve for x
    x = 830,503,031.04/33,090.75
  6. Step 6: Final answer
    x = 25,097.74

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Double scale
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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.