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Finding the Third Proportional to 17,590 and 38,518

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Solution

The third proportional to 17,590 and 38,518 is: 84,345.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,590 : 38,518 = 38,518 : x
  2. Step 2: Convert to fraction form
    17,590/38,518 = 38,518/x
  3. Step 3: Cross multiply
    17,590x = 38,518 × 38,518
  4. Step 4: Simplify right side
    17,590x = 1,483,636,324
  5. Step 5: Solve for x
    x = 1,483,636,324/17,590
  6. Step 6: Final answer
    x = 84,345.44

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.