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Finding the Fourth Proportional to 5,687.91, 8,532.72 and 1,792.26

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Solution

The fourth proportional to 5,687.91, 8,532.72 and 1,792.26 is: 2,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.91 : 8,532.72 = 1,792.26 : x
  2. Step 2: Convert to fraction form
    5,687.91/8,532.72 = 1,792.26/x
  3. Step 3: Cross multiply
    5,687.91x = 8,532.72 × 1,792.26
  4. Step 4: Simplify right side
    5,687.91x = 15,292,852.75
  5. Step 5: Solve for x
    x = 15,292,852.75/5,687.91
  6. Step 6: Final answer
    x = 2,688.66

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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.