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Finding the Fourth Proportional to 5,787.04, 8,679.75 and 1,891.48

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Solution

The fourth proportional to 5,787.04, 8,679.75 and 1,891.48 is: 2,836.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.04 : 8,679.75 = 1,891.48 : x
  2. Step 2: Convert to fraction form
    5,787.04/8,679.75 = 1,891.48/x
  3. Step 3: Cross multiply
    5,787.04x = 8,679.75 × 1,891.48
  4. Step 4: Simplify right side
    5,787.04x = 16,417,573.53
  5. Step 5: Solve for x
    x = 16,417,573.53/5,787.04
  6. Step 6: Final answer
    x = 2,836.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.