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Finding the Third Proportional to 25,336 and 40,430

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Solution

The third proportional to 25,336 and 40,430 is: 64,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,336 : 40,430 = 40,430 : x
  2. Step 2: Convert to fraction form
    25,336/40,430 = 40,430/x
  3. Step 3: Cross multiply
    25,336x = 40,430 × 40,430
  4. Step 4: Simplify right side
    25,336x = 1,634,584,900
  5. Step 5: Solve for x
    x = 1,634,584,900/25,336
  6. Step 6: Final answer
    x = 64,516.30

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.