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Finding the Third Proportional to 28,562.50 and 61,985

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Solution

The third proportional to 28,562.50 and 61,985 is: 134,516.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,562.50 : 61,985 = 61,985 : x
  2. Step 2: Convert to fraction form
    28,562.50/61,985 = 61,985/x
  3. Step 3: Cross multiply
    28,562.50x = 61,985 × 61,985
  4. Step 4: Simplify right side
    28,562.50x = 3,842,140,225
  5. Step 5: Solve for x
    x = 3,842,140,225/28,562.50
  6. Step 6: Final answer
    x = 134,516.94

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.