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Finding the Third Proportional to 7,528 and 11,960

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Solution

The third proportional to 7,528 and 11,960 is: 19,001.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528 : 11,960 = 11,960 : x
  2. Step 2: Convert to fraction form
    7,528/11,960 = 11,960/x
  3. Step 3: Cross multiply
    7,528x = 11,960 × 11,960
  4. Step 4: Simplify right side
    7,528x = 143,041,600
  5. Step 5: Solve for x
    x = 143,041,600/7,528
  6. Step 6: Final answer
    x = 19,001.28

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.