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Finding the Fourth Proportional to 33,178.60, 49,767.90 and 30,644.20

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Solution

The fourth proportional to 33,178.60, 49,767.90 and 30,644.20 is: 45,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,178.60 : 49,767.90 = 30,644.20 : x
  2. Step 2: Convert to fraction form
    33,178.60/49,767.90 = 30,644.20/x
  3. Step 3: Cross multiply
    33,178.60x = 49,767.90 × 30,644.20
  4. Step 4: Simplify right side
    33,178.60x = 1,525,097,481.18
  5. Step 5: Solve for x
    x = 1,525,097,481.18/33,178.60
  6. Step 6: Final answer
    x = 45,966.30

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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.