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Finding the Fourth Proportional to 22,637.80, 33,889.74 and 16,820.20

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Solution

The fourth proportional to 22,637.80, 33,889.74 and 16,820.20 is: 25,180.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,637.80 : 33,889.74 = 16,820.20 : x
  2. Step 2: Convert to fraction form
    22,637.80/33,889.74 = 16,820.20/x
  3. Step 3: Cross multiply
    22,637.80x = 33,889.74 × 16,820.20
  4. Step 4: Simplify right side
    22,637.80x = 570,032,204.75
  5. Step 5: Solve for x
    x = 570,032,204.75/22,637.80
  6. Step 6: Final answer
    x = 25,180.55

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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.