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Finding the Third Proportional to 7,029 and 7,515

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Solution

The third proportional to 7,029 and 7,515 is: 8,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,029 : 7,515 = 7,515 : x
  2. Step 2: Convert to fraction form
    7,029/7,515 = 7,515/x
  3. Step 3: Cross multiply
    7,029x = 7,515 × 7,515
  4. Step 4: Simplify right side
    7,029x = 56,475,225
  5. Step 5: Solve for x
    x = 56,475,225/7,029
  6. Step 6: Final answer
    x = 8,034.60

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.