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Finding the Third Proportional to 25,330 and 39,318

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Solution

The third proportional to 25,330 and 39,318 is: 61,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,330 : 39,318 = 39,318 : x
  2. Step 2: Convert to fraction form
    25,330/39,318 = 39,318/x
  3. Step 3: Cross multiply
    25,330x = 39,318 × 39,318
  4. Step 4: Simplify right side
    25,330x = 1,545,905,124
  5. Step 5: Solve for x
    x = 1,545,905,124/25,330
  6. Step 6: Final answer
    x = 61,030.60

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.