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Finding the Third Proportional to 30,574.50 and 48,645

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Solution

The third proportional to 30,574.50 and 48,645 is: 77,395.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,574.50 : 48,645 = 48,645 : x
  2. Step 2: Convert to fraction form
    30,574.50/48,645 = 48,645/x
  3. Step 3: Cross multiply
    30,574.50x = 48,645 × 48,645
  4. Step 4: Simplify right side
    30,574.50x = 2,366,336,025
  5. Step 5: Solve for x
    x = 2,366,336,025/30,574.50
  6. Step 6: Final answer
    x = 77,395.74

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.