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Finding the Third Proportional to 4,780 and 7,237

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Solution

The third proportional to 4,780 and 7,237 is: 10,956.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780 : 7,237 = 7,237 : x
  2. Step 2: Convert to fraction form
    4,780/7,237 = 7,237/x
  3. Step 3: Cross multiply
    4,780x = 7,237 × 7,237
  4. Step 4: Simplify right side
    4,780x = 52,374,169
  5. Step 5: Solve for x
    x = 52,374,169/4,780
  6. Step 6: Final answer
    x = 10,956.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.