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Finding the Third Proportional to 50,075.25 and 77,985

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Solution

The third proportional to 50,075.25 and 77,985 is: 121,450.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,075.25 : 77,985 = 77,985 : x
  2. Step 2: Convert to fraction form
    50,075.25/77,985 = 77,985/x
  3. Step 3: Cross multiply
    50,075.25x = 77,985 × 77,985
  4. Step 4: Simplify right side
    50,075.25x = 6,081,660,225
  5. Step 5: Solve for x
    x = 6,081,660,225/50,075.25
  6. Step 6: Final answer
    x = 121,450.42

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.