Home / 33,078.56-45,647.16-18,932.72

Finding the Fourth Proportional to 33,078.56, 45,647.16 and 18,932.72

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Solution

The fourth proportional to 33,078.56, 45,647.16 and 18,932.72 is: 26,126.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,078.56 : 45,647.16 = 18,932.72 : x
  2. Step 2: Convert to fraction form
    33,078.56/45,647.16 = 18,932.72/x
  3. Step 3: Cross multiply
    33,078.56x = 45,647.16 × 18,932.72
  4. Step 4: Simplify right side
    33,078.56x = 864,224,899.08
  5. Step 5: Solve for x
    x = 864,224,899.08/33,078.56
  6. Step 6: Final answer
    x = 26,126.44

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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.