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Finding the Third Proportional to 5,553 and 8,572.50

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Solution

The third proportional to 5,553 and 8,572.50 is: 13,233.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553 : 8,572.50 = 8,572.50 : x
  2. Step 2: Convert to fraction form
    5,553/8,572.50 = 8,572.50/x
  3. Step 3: Cross multiply
    5,553x = 8,572.50 × 8,572.50
  4. Step 4: Simplify right side
    5,553x = 73,487,756.25
  5. Step 5: Solve for x
    x = 73,487,756.25/5,553
  6. Step 6: Final answer
    x = 13,233.88

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.