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Finding the Fourth Proportional to 3,566.79, 4,922.21 and 1,994.90

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Solution

The fourth proportional to 3,566.79, 4,922.21 and 1,994.90 is: 2,752.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,566.79 : 4,922.21 = 1,994.90 : x
  2. Step 2: Convert to fraction form
    3,566.79/4,922.21 = 1,994.90/x
  3. Step 3: Cross multiply
    3,566.79x = 4,922.21 × 1,994.90
  4. Step 4: Simplify right side
    3,566.79x = 9,819,297.11
  5. Step 5: Solve for x
    x = 9,819,297.11/3,566.79
  6. Step 6: Final answer
    x = 2,752.98

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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.