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Finding the Fourth Proportional to 2,706.67, 4,060.01 and 859.08

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Solution

The fourth proportional to 2,706.67, 4,060.01 and 859.08 is: 1,288.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,706.67 : 4,060.01 = 859.08 : x
  2. Step 2: Convert to fraction form
    2,706.67/4,060.01 = 859.08/x
  3. Step 3: Cross multiply
    2,706.67x = 4,060.01 × 859.08
  4. Step 4: Simplify right side
    2,706.67x = 3,487,875.54
  5. Step 5: Solve for x
    x = 3,487,875.54/2,706.67
  6. Step 6: Final answer
    x = 1,288.62

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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.