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Finding the Third Proportional to 18,988.17 and 25,030.90

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Solution

The third proportional to 18,988.17 and 25,030.90 is: 32,996.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.17 : 25,030.90 = 25,030.90 : x
  2. Step 2: Convert to fraction form
    18,988.17/25,030.90 = 25,030.90/x
  3. Step 3: Cross multiply
    18,988.17x = 25,030.90 × 25,030.90
  4. Step 4: Simplify right side
    18,988.17x = 626,545,876.59
  5. Step 5: Solve for x
    x = 626,545,876.59/18,988.17
  6. Step 6: Final answer
    x = 32,996.64

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.