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Finding the Third Proportional to 39,248 and 84,970

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Solution

The third proportional to 39,248 and 84,970 is: 183,955.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,248 : 84,970 = 84,970 : x
  2. Step 2: Convert to fraction form
    39,248/84,970 = 84,970/x
  3. Step 3: Cross multiply
    39,248x = 84,970 × 84,970
  4. Step 4: Simplify right side
    39,248x = 7,219,900,900
  5. Step 5: Solve for x
    x = 7,219,900,900/39,248
  6. Step 6: Final answer
    x = 183,955.89

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.