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Finding the Third Proportional to 28,148 and 39,589.50

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Solution

The third proportional to 28,148 and 39,589.50 is: 55,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148 : 39,589.50 = 39,589.50 : x
  2. Step 2: Convert to fraction form
    28,148/39,589.50 = 39,589.50/x
  3. Step 3: Cross multiply
    28,148x = 39,589.50 × 39,589.50
  4. Step 4: Simplify right side
    28,148x = 1,567,328,510.25
  5. Step 5: Solve for x
    x = 1,567,328,510.25/28,148
  6. Step 6: Final answer
    x = 55,681.70

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.