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Finding the Third Proportional to 65,280 and 97,672.50

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Solution

The third proportional to 65,280 and 97,672.50 is: 146,138.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,280 : 97,672.50 = 97,672.50 : x
  2. Step 2: Convert to fraction form
    65,280/97,672.50 = 97,672.50/x
  3. Step 3: Cross multiply
    65,280x = 97,672.50 × 97,672.50
  4. Step 4: Simplify right side
    65,280x = 9,539,917,256.25
  5. Step 5: Solve for x
    x = 9,539,917,256.25/65,280
  6. Step 6: Final answer
    x = 146,138.44

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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.