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Finding the Third Proportional to 253.88 and 370.50

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Solution

The third proportional to 253.88 and 370.50 is: 540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.88 : 370.50 = 370.50 : x
  2. Step 2: Convert to fraction form
    253.88/370.50 = 370.50/x
  3. Step 3: Cross multiply
    253.88x = 370.50 × 370.50
  4. Step 4: Simplify right side
    253.88x = 137,270.25
  5. Step 5: Solve for x
    x = 137,270.25/253.88
  6. Step 6: Final answer
    x = 540.70

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.