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Finding the Third Proportional to 4,903.88 and 7,389.56

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Solution

The third proportional to 4,903.88 and 7,389.56 is: 11,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.88 : 7,389.56 = 7,389.56 : x
  2. Step 2: Convert to fraction form
    4,903.88/7,389.56 = 7,389.56/x
  3. Step 3: Cross multiply
    4,903.88x = 7,389.56 × 7,389.56
  4. Step 4: Simplify right side
    4,903.88x = 54,605,633.94
  5. Step 5: Solve for x
    x = 54,605,633.94/4,903.88
  6. Step 6: Final answer
    x = 11,135.20

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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.