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Finding the Third Proportional to 30,586.50 and 45,312.75

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Solution

The third proportional to 30,586.50 and 45,312.75 is: 67,129.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,586.50 : 45,312.75 = 45,312.75 : x
  2. Step 2: Convert to fraction form
    30,586.50/45,312.75 = 45,312.75/x
  3. Step 3: Cross multiply
    30,586.50x = 45,312.75 × 45,312.75
  4. Step 4: Simplify right side
    30,586.50x = 2,053,245,312.56
  5. Step 5: Solve for x
    x = 2,053,245,312.56/30,586.50
  6. Step 6: Final answer
    x = 67,129.14

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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.