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Finding the Third Proportional to 63,579 and 93,421

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Solution

The third proportional to 63,579 and 93,421 is: 137,269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,579 : 93,421 = 93,421 : x
  2. Step 2: Convert to fraction form
    63,579/93,421 = 93,421/x
  3. Step 3: Cross multiply
    63,579x = 93,421 × 93,421
  4. Step 4: Simplify right side
    63,579x = 8,727,483,241
  5. Step 5: Solve for x
    x = 8,727,483,241/63,579
  6. Step 6: Final answer
    x = 137,269.90

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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.