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Finding the Third Proportional to 66,483 and 99,724.50

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Solution

The third proportional to 66,483 and 99,724.50 is: 149,586.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,483 : 99,724.50 = 99,724.50 : x
  2. Step 2: Convert to fraction form
    66,483/99,724.50 = 99,724.50/x
  3. Step 3: Cross multiply
    66,483x = 99,724.50 × 99,724.50
  4. Step 4: Simplify right side
    66,483x = 9,944,975,900.25
  5. Step 5: Solve for x
    x = 9,944,975,900.25/66,483
  6. Step 6: Final answer
    x = 149,586.75

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Similar ratio
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1.5x scale

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.