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Finding the Third Proportional to 43,281 and 64,748

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Solution

The third proportional to 43,281 and 64,748 is: 96,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,281 : 64,748 = 64,748 : x
  2. Step 2: Convert to fraction form
    43,281/64,748 = 64,748/x
  3. Step 3: Cross multiply
    43,281x = 64,748 × 64,748
  4. Step 4: Simplify right side
    43,281x = 4,192,303,504
  5. Step 5: Solve for x
    x = 4,192,303,504/43,281
  6. Step 6: Final answer
    x = 96,862.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.