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Finding the Third Proportional to 7,312.50 and 11,343.38

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Solution

The third proportional to 7,312.50 and 11,343.38 is: 17,596.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.50 : 11,343.38 = 11,343.38 : x
  2. Step 2: Convert to fraction form
    7,312.50/11,343.38 = 11,343.38/x
  3. Step 3: Cross multiply
    7,312.50x = 11,343.38 × 11,343.38
  4. Step 4: Simplify right side
    7,312.50x = 128,672,156.39
  5. Step 5: Solve for x
    x = 128,672,156.39/7,312.50
  6. Step 6: Final answer
    x = 17,596.19

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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.