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Finding the Third Proportional to 28,898.50 and 63,089

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Solution

The third proportional to 28,898.50 and 63,089 is: 137,731.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,898.50 : 63,089 = 63,089 : x
  2. Step 2: Convert to fraction form
    28,898.50/63,089 = 63,089/x
  3. Step 3: Cross multiply
    28,898.50x = 63,089 × 63,089
  4. Step 4: Simplify right side
    28,898.50x = 3,980,221,921
  5. Step 5: Solve for x
    x = 3,980,221,921/28,898.50
  6. Step 6: Final answer
    x = 137,731.09

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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.