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Finding the Third Proportional to 20,718.75 and 45,232.88

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Solution

The third proportional to 20,718.75 and 45,232.88 is: 98,751.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718.75 : 45,232.88 = 45,232.88 : x
  2. Step 2: Convert to fraction form
    20,718.75/45,232.88 = 45,232.88/x
  3. Step 3: Cross multiply
    20,718.75x = 45,232.88 × 45,232.88
  4. Step 4: Simplify right side
    20,718.75x = 2,046,012,980.77
  5. Step 5: Solve for x
    x = 2,046,012,980.77/20,718.75
  6. Step 6: Final answer
    x = 98,751.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.