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Finding the Third Proportional to 30,417 and 45,503.75

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Solution

The third proportional to 30,417 and 45,503.75 is: 68,073.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417 : 45,503.75 = 45,503.75 : x
  2. Step 2: Convert to fraction form
    30,417/45,503.75 = 45,503.75/x
  3. Step 3: Cross multiply
    30,417x = 45,503.75 × 45,503.75
  4. Step 4: Simplify right side
    30,417x = 2,070,591,264.06
  5. Step 5: Solve for x
    x = 2,070,591,264.06/30,417
  6. Step 6: Final answer
    x = 68,073.49

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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.