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Finding the Third Proportional to 7,584 and 17,120

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Solution

The third proportional to 7,584 and 17,120 is: 38,646.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,584 : 17,120 = 17,120 : x
  2. Step 2: Convert to fraction form
    7,584/17,120 = 17,120/x
  3. Step 3: Cross multiply
    7,584x = 17,120 × 17,120
  4. Step 4: Simplify right side
    7,584x = 293,094,400
  5. Step 5: Solve for x
    x = 293,094,400/7,584
  6. Step 6: Final answer
    x = 38,646.41

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.