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Finding the Third Proportional to 19,780 and 43,528

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Solution

The third proportional to 19,780 and 43,528 is: 95,788.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780 : 43,528 = 43,528 : x
  2. Step 2: Convert to fraction form
    19,780/43,528 = 43,528/x
  3. Step 3: Cross multiply
    19,780x = 43,528 × 43,528
  4. Step 4: Simplify right side
    19,780x = 1,894,686,784
  5. Step 5: Solve for x
    x = 1,894,686,784/19,780
  6. Step 6: Final answer
    x = 95,788.01

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.