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Finding the Fourth Proportional to 33,922.80, 46,801.80 and 19,780.20

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Solution

The fourth proportional to 33,922.80, 46,801.80 and 19,780.20 is: 27,289.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,922.80 : 46,801.80 = 19,780.20 : x
  2. Step 2: Convert to fraction form
    33,922.80/46,801.80 = 19,780.20/x
  3. Step 3: Cross multiply
    33,922.80x = 46,801.80 × 19,780.20
  4. Step 4: Simplify right side
    33,922.80x = 925,748,964.36
  5. Step 5: Solve for x
    x = 925,748,964.36/33,922.80
  6. Step 6: Final answer
    x = 27,289.87

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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.