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Finding the Third Proportional to 25,488 and 38,280

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Solution

The third proportional to 25,488 and 38,280 is: 57,492.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,488 : 38,280 = 38,280 : x
  2. Step 2: Convert to fraction form
    25,488/38,280 = 38,280/x
  3. Step 3: Cross multiply
    25,488x = 38,280 × 38,280
  4. Step 4: Simplify right side
    25,488x = 1,465,358,400
  5. Step 5: Solve for x
    x = 1,465,358,400/25,488
  6. Step 6: Final answer
    x = 57,492.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.