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Finding the Third Proportional to 14,564 and 31,205

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Solution

The third proportional to 14,564 and 31,205 is: 66,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,564 : 31,205 = 31,205 : x
  2. Step 2: Convert to fraction form
    14,564/31,205 = 31,205/x
  3. Step 3: Cross multiply
    14,564x = 31,205 × 31,205
  4. Step 4: Simplify right side
    14,564x = 973,752,025
  5. Step 5: Solve for x
    x = 973,752,025/14,564
  6. Step 6: Final answer
    x = 66,860.20

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.