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Finding the Fourth Proportional to 22,112.90, 30,514.90 and 12,041.33

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Solution

The fourth proportional to 22,112.90, 30,514.90 and 12,041.33 is: 16,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,112.90 : 30,514.90 = 12,041.33 : x
  2. Step 2: Convert to fraction form
    22,112.90/30,514.90 = 12,041.33/x
  3. Step 3: Cross multiply
    22,112.90x = 30,514.90 × 12,041.33
  4. Step 4: Simplify right side
    22,112.90x = 367,440,112.05
  5. Step 5: Solve for x
    x = 367,440,112.05/22,112.90
  6. Step 6: Final answer
    x = 16,616.55

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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.