Home / 33,078.51-45,650.39-18,931.05

Finding the Fourth Proportional to 33,078.51, 45,650.39 and 18,931.05

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Solution

The fourth proportional to 33,078.51, 45,650.39 and 18,931.05 is: 26,126.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,078.51 : 45,650.39 = 18,931.05 : x
  2. Step 2: Convert to fraction form
    33,078.51/45,650.39 = 18,931.05/x
  3. Step 3: Cross multiply
    33,078.51x = 45,650.39 × 18,931.05
  4. Step 4: Simplify right side
    33,078.51x = 864,209,720.95
  5. Step 5: Solve for x
    x = 864,209,720.95/33,078.51
  6. Step 6: Final answer
    x = 26,126.02

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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.