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Finding the Third Proportional to 5,503.50 and 8,722.13

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Solution

The third proportional to 5,503.50 and 8,722.13 is: 13,823.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,503.50 : 8,722.13 = 8,722.13 : x
  2. Step 2: Convert to fraction form
    5,503.50/8,722.13 = 8,722.13/x
  3. Step 3: Cross multiply
    5,503.50x = 8,722.13 × 8,722.13
  4. Step 4: Simplify right side
    5,503.50x = 76,075,464.52
  5. Step 5: Solve for x
    x = 76,075,464.52/5,503.50
  6. Step 6: Final answer
    x = 13,823.11

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.