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Finding the Third Proportional to 29,787.50 and 65,478.75

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Solution

The third proportional to 29,787.50 and 65,478.75 is: 143,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,787.50 : 65,478.75 = 65,478.75 : x
  2. Step 2: Convert to fraction form
    29,787.50/65,478.75 = 65,478.75/x
  3. Step 3: Cross multiply
    29,787.50x = 65,478.75 × 65,478.75
  4. Step 4: Simplify right side
    29,787.50x = 4,287,466,701.56
  5. Step 5: Solve for x
    x = 4,287,466,701.56/29,787.50
  6. Step 6: Final answer
    x = 143,935.10

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.