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Finding the Third Proportional to 5,280.19 and 5,720.63

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Solution

The third proportional to 5,280.19 and 5,720.63 is: 6,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.19 : 5,720.63 = 5,720.63 : x
  2. Step 2: Convert to fraction form
    5,280.19/5,720.63 = 5,720.63/x
  3. Step 3: Cross multiply
    5,280.19x = 5,720.63 × 5,720.63
  4. Step 4: Simplify right side
    5,280.19x = 32,725,550.39
  5. Step 5: Solve for x
    x = 32,725,550.39/5,280.19
  6. Step 6: Final answer
    x = 6,197.80

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.