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Finding the Third Proportional to 15,357 and 25,506

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Solution

The third proportional to 15,357 and 25,506 is: 42,362.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,357 : 25,506 = 25,506 : x
  2. Step 2: Convert to fraction form
    15,357/25,506 = 25,506/x
  3. Step 3: Cross multiply
    15,357x = 25,506 × 25,506
  4. Step 4: Simplify right side
    15,357x = 650,556,036
  5. Step 5: Solve for x
    x = 650,556,036/15,357
  6. Step 6: Final answer
    x = 42,362.18

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.