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Finding the Third Proportional to 6,528 and 7,072

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Solution

The third proportional to 6,528 and 7,072 is: 7,661.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,528 : 7,072 = 7,072 : x
  2. Step 2: Convert to fraction form
    6,528/7,072 = 7,072/x
  3. Step 3: Cross multiply
    6,528x = 7,072 × 7,072
  4. Step 4: Simplify right side
    6,528x = 50,013,184
  5. Step 5: Solve for x
    x = 50,013,184/6,528
  6. Step 6: Final answer
    x = 7,661.33

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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.