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Finding the Fourth Proportional to 3,556.02, 4,907.31 and 1,984.11

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Solution

The fourth proportional to 3,556.02, 4,907.31 and 1,984.11 is: 2,738.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.02 : 4,907.31 = 1,984.11 : x
  2. Step 2: Convert to fraction form
    3,556.02/4,907.31 = 1,984.11/x
  3. Step 3: Cross multiply
    3,556.02x = 4,907.31 × 1,984.11
  4. Step 4: Simplify right side
    3,556.02x = 9,736,632.92
  5. Step 5: Solve for x
    x = 9,736,632.92/3,556.02
  6. Step 6: Final answer
    x = 2,738.07

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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.