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Finding the Third Proportional to 653.50 and 934.50

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Solution

The third proportional to 653.50 and 934.50 is: 1,336.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.50 : 934.50 = 934.50 : x
  2. Step 2: Convert to fraction form
    653.50/934.50 = 934.50/x
  3. Step 3: Cross multiply
    653.50x = 934.50 × 934.50
  4. Step 4: Simplify right side
    653.50x = 873,290.25
  5. Step 5: Solve for x
    x = 873,290.25/653.50
  6. Step 6: Final answer
    x = 1,336.33

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.