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Finding the Third Proportional to 26,413.50 and 38,688

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Solution

The third proportional to 26,413.50 and 38,688 is: 56,666.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,413.50 : 38,688 = 38,688 : x
  2. Step 2: Convert to fraction form
    26,413.50/38,688 = 38,688/x
  3. Step 3: Cross multiply
    26,413.50x = 38,688 × 38,688
  4. Step 4: Simplify right side
    26,413.50x = 1,496,761,344
  5. Step 5: Solve for x
    x = 1,496,761,344/26,413.50
  6. Step 6: Final answer
    x = 56,666.53

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.