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Finding the Third Proportional to 54,522 and 79,988

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Solution

The third proportional to 54,522 and 79,988 is: 117,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,522 : 79,988 = 79,988 : x
  2. Step 2: Convert to fraction form
    54,522/79,988 = 79,988/x
  3. Step 3: Cross multiply
    54,522x = 79,988 × 79,988
  4. Step 4: Simplify right side
    54,522x = 6,398,080,144
  5. Step 5: Solve for x
    x = 6,398,080,144/54,522
  6. Step 6: Final answer
    x = 117,348.60

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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.