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Finding the Third Proportional to 19,908 and 43,117

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Solution

The third proportional to 19,908 and 43,117 is: 93,383.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,908 : 43,117 = 43,117 : x
  2. Step 2: Convert to fraction form
    19,908/43,117 = 43,117/x
  3. Step 3: Cross multiply
    19,908x = 43,117 × 43,117
  4. Step 4: Simplify right side
    19,908x = 1,859,075,689
  5. Step 5: Solve for x
    x = 1,859,075,689/19,908
  6. Step 6: Final answer
    x = 93,383.35

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.