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Finding the Third Proportional to 7,312.50 and 15,945.75

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Solution

The third proportional to 7,312.50 and 15,945.75 is: 34,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.50 : 15,945.75 = 15,945.75 : x
  2. Step 2: Convert to fraction form
    7,312.50/15,945.75 = 15,945.75/x
  3. Step 3: Cross multiply
    7,312.50x = 15,945.75 × 15,945.75
  4. Step 4: Simplify right side
    7,312.50x = 254,266,943.06
  5. Step 5: Solve for x
    x = 254,266,943.06/7,312.50
  6. Step 6: Final answer
    x = 34,771.55

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.