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Finding the Third Proportional to 316.50 and 592.50

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Solution

The third proportional to 316.50 and 592.50 is: 1,109.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.50 : 592.50 = 592.50 : x
  2. Step 2: Convert to fraction form
    316.50/592.50 = 592.50/x
  3. Step 3: Cross multiply
    316.50x = 592.50 × 592.50
  4. Step 4: Simplify right side
    316.50x = 351,056.25
  5. Step 5: Solve for x
    x = 351,056.25/316.50
  6. Step 6: Final answer
    x = 1,109.18

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.