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Finding the Fourth Proportional to 3,493.94, 4,821.63 and 1,922.03

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Solution

The fourth proportional to 3,493.94, 4,821.63 and 1,922.03 is: 2,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.94 : 4,821.63 = 1,922.03 : x
  2. Step 2: Convert to fraction form
    3,493.94/4,821.63 = 1,922.03/x
  3. Step 3: Cross multiply
    3,493.94x = 4,821.63 × 1,922.03
  4. Step 4: Simplify right side
    3,493.94x = 9,267,317.51
  5. Step 5: Solve for x
    x = 9,267,317.51/3,493.94
  6. Step 6: Final answer
    x = 2,652.40

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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.