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Finding the Third Proportional to 21,274.50 and 45,445

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Solution

The third proportional to 21,274.50 and 45,445 is: 97,076.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.50 : 45,445 = 45,445 : x
  2. Step 2: Convert to fraction form
    21,274.50/45,445 = 45,445/x
  3. Step 3: Cross multiply
    21,274.50x = 45,445 × 45,445
  4. Step 4: Simplify right side
    21,274.50x = 2,065,248,025
  5. Step 5: Solve for x
    x = 2,065,248,025/21,274.50
  6. Step 6: Final answer
    x = 97,076.22

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.