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Finding the Third Proportional to 7,089 and 13,260

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Solution

The third proportional to 7,089 and 13,260 is: 24,802.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089 : 13,260 = 13,260 : x
  2. Step 2: Convert to fraction form
    7,089/13,260 = 13,260/x
  3. Step 3: Cross multiply
    7,089x = 13,260 × 13,260
  4. Step 4: Simplify right side
    7,089x = 175,827,600
  5. Step 5: Solve for x
    x = 175,827,600/7,089
  6. Step 6: Final answer
    x = 24,802.88

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.