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Finding the Third Proportional to 4,545 and 9,957.75

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Solution

The third proportional to 4,545 and 9,957.75 is: 21,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,545 : 9,957.75 = 9,957.75 : x
  2. Step 2: Convert to fraction form
    4,545/9,957.75 = 9,957.75/x
  3. Step 3: Cross multiply
    4,545x = 9,957.75 × 9,957.75
  4. Step 4: Simplify right side
    4,545x = 99,156,785.06
  5. Step 5: Solve for x
    x = 99,156,785.06/4,545
  6. Step 6: Final answer
    x = 21,816.67

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.