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Finding the Fourth Proportional to 22,274.80, 33,412.20 and 21,929.20

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Solution

The fourth proportional to 22,274.80, 33,412.20 and 21,929.20 is: 32,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,274.80 : 33,412.20 = 21,929.20 : x
  2. Step 2: Convert to fraction form
    22,274.80/33,412.20 = 21,929.20/x
  3. Step 3: Cross multiply
    22,274.80x = 33,412.20 × 21,929.20
  4. Step 4: Simplify right side
    22,274.80x = 732,702,816.24
  5. Step 5: Solve for x
    x = 732,702,816.24/22,274.80
  6. Step 6: Final answer
    x = 32,893.80

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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.