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Finding the Third Proportional to 55,554 and 79,386.75

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Solution

The third proportional to 55,554 and 79,386.75 is: 113,443.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,554 : 79,386.75 = 79,386.75 : x
  2. Step 2: Convert to fraction form
    55,554/79,386.75 = 79,386.75/x
  3. Step 3: Cross multiply
    55,554x = 79,386.75 × 79,386.75
  4. Step 4: Simplify right side
    55,554x = 6,302,256,075.56
  5. Step 5: Solve for x
    x = 6,302,256,075.56/55,554
  6. Step 6: Final answer
    x = 113,443.79

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.