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Finding the Third Proportional to 6,130 and 8,280

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Solution

The third proportional to 6,130 and 8,280 is: 11,184.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,130 : 8,280 = 8,280 : x
  2. Step 2: Convert to fraction form
    6,130/8,280 = 8,280/x
  3. Step 3: Cross multiply
    6,130x = 8,280 × 8,280
  4. Step 4: Simplify right side
    6,130x = 68,558,400
  5. Step 5: Solve for x
    x = 68,558,400/6,130
  6. Step 6: Final answer
    x = 11,184.08

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.