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Finding the Third Proportional to 15,289 and 33,585

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Solution

The third proportional to 15,289 and 33,585 is: 73,775.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289 : 33,585 = 33,585 : x
  2. Step 2: Convert to fraction form
    15,289/33,585 = 33,585/x
  3. Step 3: Cross multiply
    15,289x = 33,585 × 33,585
  4. Step 4: Simplify right side
    15,289x = 1,127,952,225
  5. Step 5: Solve for x
    x = 1,127,952,225/15,289
  6. Step 6: Final answer
    x = 73,775.41

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.