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Finding the Third Proportional to 316 and 525.50

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Solution

The third proportional to 316 and 525.50 is: 873.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    316 : 525.50 = 525.50 : x
  2. Step 2: Convert to fraction form
    316/525.50 = 525.50/x
  3. Step 3: Cross multiply
    316x = 525.50 × 525.50
  4. Step 4: Simplify right side
    316x = 276,150.25
  5. Step 5: Solve for x
    x = 276,150.25/316
  6. Step 6: Final answer
    x = 873.89

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.