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Finding the Fourth Proportional to 5,746.75, 8,620.13 and 1,586.80

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Solution

The fourth proportional to 5,746.75, 8,620.13 and 1,586.80 is: 2,380.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,746.75 : 8,620.13 = 1,586.80 : x
  2. Step 2: Convert to fraction form
    5,746.75/8,620.13 = 1,586.80/x
  3. Step 3: Cross multiply
    5,746.75x = 8,620.13 × 1,586.80
  4. Step 4: Simplify right side
    5,746.75x = 13,678,422.28
  5. Step 5: Solve for x
    x = 13,678,422.28/5,746.75
  6. Step 6: Final answer
    x = 2,380.20

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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.