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Finding the Third Proportional to 15,357 and 31,362

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Solution

The third proportional to 15,357 and 31,362 is: 64,047.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,357 : 31,362 = 31,362 : x
  2. Step 2: Convert to fraction form
    15,357/31,362 = 31,362/x
  3. Step 3: Cross multiply
    15,357x = 31,362 × 31,362
  4. Step 4: Simplify right side
    15,357x = 983,575,044
  5. Step 5: Solve for x
    x = 983,575,044/15,357
  6. Step 6: Final answer
    x = 64,047.34

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.