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Finding the Fourth Proportional to 2,998.87, 4,521.15 and 2,787.46

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Solution

The fourth proportional to 2,998.87, 4,521.15 and 2,787.46 is: 4,202.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.87 : 4,521.15 = 2,787.46 : x
  2. Step 2: Convert to fraction form
    2,998.87/4,521.15 = 2,787.46/x
  3. Step 3: Cross multiply
    2,998.87x = 4,521.15 × 2,787.46
  4. Step 4: Simplify right side
    2,998.87x = 12,602,527.15
  5. Step 5: Solve for x
    x = 12,602,527.15/2,998.87
  6. Step 6: Final answer
    x = 4,202.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.