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Finding the Third Proportional to 602.50 and 1,235

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Solution

The third proportional to 602.50 and 1,235 is: 2,531.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.50 : 1,235 = 1,235 : x
  2. Step 2: Convert to fraction form
    602.50/1,235 = 1,235/x
  3. Step 3: Cross multiply
    602.50x = 1,235 × 1,235
  4. Step 4: Simplify right side
    602.50x = 1,525,225
  5. Step 5: Solve for x
    x = 1,525,225/602.50
  6. Step 6: Final answer
    x = 2,531.49

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.