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Finding the Fourth Proportional to 3,673.22, 5,509.22 and 1,208.06

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Solution

The fourth proportional to 3,673.22, 5,509.22 and 1,208.06 is: 1,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,673.22 : 5,509.22 = 1,208.06 : x
  2. Step 2: Convert to fraction form
    3,673.22/5,509.22 = 1,208.06/x
  3. Step 3: Cross multiply
    3,673.22x = 5,509.22 × 1,208.06
  4. Step 4: Simplify right side
    3,673.22x = 6,655,486.38
  5. Step 5: Solve for x
    x = 6,655,486.38/3,673.22
  6. Step 6: Final answer
    x = 1,811.90

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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.