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Finding the Fourth Proportional to 3,299.64, 4,554.09 and 1,973.49

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Solution

The fourth proportional to 3,299.64, 4,554.09 and 1,973.49 is: 2,723.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299.64 : 4,554.09 = 1,973.49 : x
  2. Step 2: Convert to fraction form
    3,299.64/4,554.09 = 1,973.49/x
  3. Step 3: Cross multiply
    3,299.64x = 4,554.09 × 1,973.49
  4. Step 4: Simplify right side
    3,299.64x = 8,987,451.07
  5. Step 5: Solve for x
    x = 8,987,451.07/3,299.64
  6. Step 6: Final answer
    x = 2,723.77

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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.