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Finding the Third Proportional to 591 and 903.50

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Solution

The third proportional to 591 and 903.50 is: 1,381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    591 : 903.50 = 903.50 : x
  2. Step 2: Convert to fraction form
    591/903.50 = 903.50/x
  3. Step 3: Cross multiply
    591x = 903.50 × 903.50
  4. Step 4: Simplify right side
    591x = 816,312.25
  5. Step 5: Solve for x
    x = 816,312.25/591
  6. Step 6: Final answer
    x = 1,381.24

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.