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Finding the Third Proportional to 25,248 and 39,520

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Solution

The third proportional to 25,248 and 39,520 is: 61,859.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,248 : 39,520 = 39,520 : x
  2. Step 2: Convert to fraction form
    25,248/39,520 = 39,520/x
  3. Step 3: Cross multiply
    25,248x = 39,520 × 39,520
  4. Step 4: Simplify right side
    25,248x = 1,561,830,400
  5. Step 5: Solve for x
    x = 1,561,830,400/25,248
  6. Step 6: Final answer
    x = 61,859.57

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.