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Finding the Third Proportional to 20,178 and 25,528

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Solution

The third proportional to 20,178 and 25,528 is: 32,296.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178 : 25,528 = 25,528 : x
  2. Step 2: Convert to fraction form
    20,178/25,528 = 25,528/x
  3. Step 3: Cross multiply
    20,178x = 25,528 × 25,528
  4. Step 4: Simplify right side
    20,178x = 651,678,784
  5. Step 5: Solve for x
    x = 651,678,784/20,178
  6. Step 6: Final answer
    x = 32,296.50

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.