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Finding the Third Proportional to 83,528 and 129,536

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Solution

The third proportional to 83,528 and 129,536 is: 200,885.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,528 : 129,536 = 129,536 : x
  2. Step 2: Convert to fraction form
    83,528/129,536 = 129,536/x
  3. Step 3: Cross multiply
    83,528x = 129,536 × 129,536
  4. Step 4: Simplify right side
    83,528x = 16,779,575,296
  5. Step 5: Solve for x
    x = 16,779,575,296/83,528
  6. Step 6: Final answer
    x = 200,885.63

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.