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Finding the Third Proportional to 55,385 and 83,133

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Solution

The third proportional to 55,385 and 83,133 is: 124,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,385 : 83,133 = 83,133 : x
  2. Step 2: Convert to fraction form
    55,385/83,133 = 83,133/x
  3. Step 3: Cross multiply
    55,385x = 83,133 × 83,133
  4. Step 4: Simplify right side
    55,385x = 6,911,095,689
  5. Step 5: Solve for x
    x = 6,911,095,689/55,385
  6. Step 6: Final answer
    x = 124,782.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.