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Finding the Third Proportional to 7,075.50 and 15,511

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Solution

The third proportional to 7,075.50 and 15,511 is: 34,003.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.50 : 15,511 = 15,511 : x
  2. Step 2: Convert to fraction form
    7,075.50/15,511 = 15,511/x
  3. Step 3: Cross multiply
    7,075.50x = 15,511 × 15,511
  4. Step 4: Simplify right side
    7,075.50x = 240,591,121
  5. Step 5: Solve for x
    x = 240,591,121/7,075.50
  6. Step 6: Final answer
    x = 34,003.41

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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.