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Finding the Fourth Proportional to 5,787.98, 8,681.33 and 1,628.12

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Solution

The fourth proportional to 5,787.98, 8,681.33 and 1,628.12 is: 2,441.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.98 : 8,681.33 = 1,628.12 : x
  2. Step 2: Convert to fraction form
    5,787.98/8,681.33 = 1,628.12/x
  3. Step 3: Cross multiply
    5,787.98x = 8,681.33 × 1,628.12
  4. Step 4: Simplify right side
    5,787.98x = 14,134,195.45
  5. Step 5: Solve for x
    x = 14,134,195.45/5,787.98
  6. Step 6: Final answer
    x = 2,441.99

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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.