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Finding the Third Proportional to 28,655.50 and 61,000.75

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Solution

The third proportional to 28,655.50 and 61,000.75 is: 129,856.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.50 : 61,000.75 = 61,000.75 : x
  2. Step 2: Convert to fraction form
    28,655.50/61,000.75 = 61,000.75/x
  3. Step 3: Cross multiply
    28,655.50x = 61,000.75 × 61,000.75
  4. Step 4: Simplify right side
    28,655.50x = 3,721,091,500.56
  5. Step 5: Solve for x
    x = 3,721,091,500.56/28,655.50
  6. Step 6: Final answer
    x = 129,856.10

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.