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Finding the Fourth Proportional to 73,937.84, 110,905.07 and 20,628.41

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Solution

The fourth proportional to 73,937.84, 110,905.07 and 20,628.41 is: 30,942.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,937.84 : 110,905.07 = 20,628.41 : x
  2. Step 2: Convert to fraction form
    73,937.84/110,905.07 = 20,628.41/x
  3. Step 3: Cross multiply
    73,937.84x = 110,905.07 × 20,628.41
  4. Step 4: Simplify right side
    73,937.84x = 2,287,794,597.37
  5. Step 5: Solve for x
    x = 2,287,794,597.37/73,937.84
  6. Step 6: Final answer
    x = 30,942.14

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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.