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Finding the Fourth Proportional to 3,672.84, 5,068.42 and 1,994.17

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Solution

The fourth proportional to 3,672.84, 5,068.42 and 1,994.17 is: 2,751.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.84 : 5,068.42 = 1,994.17 : x
  2. Step 2: Convert to fraction form
    3,672.84/5,068.42 = 1,994.17/x
  3. Step 3: Cross multiply
    3,672.84x = 5,068.42 × 1,994.17
  4. Step 4: Simplify right side
    3,672.84x = 10,107,291.11
  5. Step 5: Solve for x
    x = 10,107,291.11/3,672.84
  6. Step 6: Final answer
    x = 2,751.90

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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.