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Finding the Fourth Proportional to 33,103.48, 45,679.08 and 18,959.08

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Solution

The fourth proportional to 33,103.48, 45,679.08 and 18,959.08 is: 26,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,103.48 : 45,679.08 = 18,959.08 : x
  2. Step 2: Convert to fraction form
    33,103.48/45,679.08 = 18,959.08/x
  3. Step 3: Cross multiply
    33,103.48x = 45,679.08 × 18,959.08
  4. Step 4: Simplify right side
    33,103.48x = 866,033,332.05
  5. Step 5: Solve for x
    x = 866,033,332.05/33,103.48
  6. Step 6: Final answer
    x = 26,161.40

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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.