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Finding the Third Proportional to 4,917.50 and 7,403

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Solution

The third proportional to 4,917.50 and 7,403 is: 11,144.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.50 : 7,403 = 7,403 : x
  2. Step 2: Convert to fraction form
    4,917.50/7,403 = 7,403/x
  3. Step 3: Cross multiply
    4,917.50x = 7,403 × 7,403
  4. Step 4: Simplify right side
    4,917.50x = 54,804,409
  5. Step 5: Solve for x
    x = 54,804,409/4,917.50
  6. Step 6: Final answer
    x = 11,144.77

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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.