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Finding the Third Proportional to 573.75 and 891

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Solution

The third proportional to 573.75 and 891 is: 1,383.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.75 : 891 = 891 : x
  2. Step 2: Convert to fraction form
    573.75/891 = 891/x
  3. Step 3: Cross multiply
    573.75x = 891 × 891
  4. Step 4: Simplify right side
    573.75x = 793,881
  5. Step 5: Solve for x
    x = 793,881/573.75
  6. Step 6: Final answer
    x = 1,383.67

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.