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Finding the Third Proportional to 1,990 and 4,594

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Solution

The third proportional to 1,990 and 4,594 is: 10,605.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990 : 4,594 = 4,594 : x
  2. Step 2: Convert to fraction form
    1,990/4,594 = 4,594/x
  3. Step 3: Cross multiply
    1,990x = 4,594 × 4,594
  4. Step 4: Simplify right side
    1,990x = 21,104,836
  5. Step 5: Solve for x
    x = 21,104,836/1,990
  6. Step 6: Final answer
    x = 10,605.45

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.