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Finding the Third Proportional to 54,423 and 79,771.50

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Solution

The third proportional to 54,423 and 79,771.50 is: 116,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,423 : 79,771.50 = 79,771.50 : x
  2. Step 2: Convert to fraction form
    54,423/79,771.50 = 79,771.50/x
  3. Step 3: Cross multiply
    54,423x = 79,771.50 × 79,771.50
  4. Step 4: Simplify right side
    54,423x = 6,363,492,212.25
  5. Step 5: Solve for x
    x = 6,363,492,212.25/54,423
  6. Step 6: Final answer
    x = 116,926.52

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.