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Finding the Third Proportional to 55,969.50 and 77,574

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Solution

The third proportional to 55,969.50 and 77,574 is: 107,517.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,969.50 : 77,574 = 77,574 : x
  2. Step 2: Convert to fraction form
    55,969.50/77,574 = 77,574/x
  3. Step 3: Cross multiply
    55,969.50x = 77,574 × 77,574
  4. Step 4: Simplify right side
    55,969.50x = 6,017,725,476
  5. Step 5: Solve for x
    x = 6,017,725,476/55,969.50
  6. Step 6: Final answer
    x = 107,517.94

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.