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Finding the Third Proportional to 7,741.50 and 11,430

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Solution

The third proportional to 7,741.50 and 11,430 is: 16,875.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,741.50 : 11,430 = 11,430 : x
  2. Step 2: Convert to fraction form
    7,741.50/11,430 = 11,430/x
  3. Step 3: Cross multiply
    7,741.50x = 11,430 × 11,430
  4. Step 4: Simplify right side
    7,741.50x = 130,644,900
  5. Step 5: Solve for x
    x = 130,644,900/7,741.50
  6. Step 6: Final answer
    x = 16,875.92

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.