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Finding the Third Proportional to 52,780.50 and 79,074

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Solution

The third proportional to 52,780.50 and 79,074 is: 118,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,780.50 : 79,074 = 79,074 : x
  2. Step 2: Convert to fraction form
    52,780.50/79,074 = 79,074/x
  3. Step 3: Cross multiply
    52,780.50x = 79,074 × 79,074
  4. Step 4: Simplify right side
    52,780.50x = 6,252,697,476
  5. Step 5: Solve for x
    x = 6,252,697,476/52,780.50
  6. Step 6: Final answer
    x = 118,466.05

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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.