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Finding the Third Proportional to 6,528 and 11,840

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Solution

The third proportional to 6,528 and 11,840 is: 21,474.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,528 : 11,840 = 11,840 : x
  2. Step 2: Convert to fraction form
    6,528/11,840 = 11,840/x
  3. Step 3: Cross multiply
    6,528x = 11,840 × 11,840
  4. Step 4: Simplify right side
    6,528x = 140,185,600
  5. Step 5: Solve for x
    x = 140,185,600/6,528
  6. Step 6: Final answer
    x = 21,474.51

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Why These Related Problems?

These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.