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Finding the Fourth Proportional to 22,460.56, 33,690.92 and 21,919.28

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Solution

The fourth proportional to 22,460.56, 33,690.92 and 21,919.28 is: 32,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,460.56 : 33,690.92 = 21,919.28 : x
  2. Step 2: Convert to fraction form
    22,460.56/33,690.92 = 21,919.28/x
  3. Step 3: Cross multiply
    22,460.56x = 33,690.92 × 21,919.28
  4. Step 4: Simplify right side
    22,460.56x = 738,480,708.94
  5. Step 5: Solve for x
    x = 738,480,708.94/22,460.56
  6. Step 6: Final answer
    x = 32,879.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.