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Finding the Fourth Proportional to 5,720.68, 8,576.16 and 5,411.26

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Solution

The fourth proportional to 5,720.68, 8,576.16 and 5,411.26 is: 8,112.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.68 : 8,576.16 = 5,411.26 : x
  2. Step 2: Convert to fraction form
    5,720.68/8,576.16 = 5,411.26/x
  3. Step 3: Cross multiply
    5,720.68x = 8,576.16 × 5,411.26
  4. Step 4: Simplify right side
    5,720.68x = 46,407,831.56
  5. Step 5: Solve for x
    x = 46,407,831.56/5,720.68
  6. Step 6: Final answer
    x = 8,112.29

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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.