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Finding the Third Proportional to 15,948 and 34,920

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Solution

The third proportional to 15,948 and 34,920 is: 76,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,948 : 34,920 = 34,920 : x
  2. Step 2: Convert to fraction form
    15,948/34,920 = 34,920/x
  3. Step 3: Cross multiply
    15,948x = 34,920 × 34,920
  4. Step 4: Simplify right side
    15,948x = 1,219,406,400
  5. Step 5: Solve for x
    x = 1,219,406,400/15,948
  6. Step 6: Final answer
    x = 76,461.40

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.