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Finding the Third Proportional to 55,370 and 79,113

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Solution

The third proportional to 55,370 and 79,113 is: 113,037.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,370 : 79,113 = 79,113 : x
  2. Step 2: Convert to fraction form
    55,370/79,113 = 79,113/x
  3. Step 3: Cross multiply
    55,370x = 79,113 × 79,113
  4. Step 4: Simplify right side
    55,370x = 6,258,866,769
  5. Step 5: Solve for x
    x = 6,258,866,769/55,370
  6. Step 6: Final answer
    x = 113,037.15

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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.