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Finding the Third Proportional to 28,838.50 and 61,778

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Solution

The third proportional to 28,838.50 and 61,778 is: 132,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,838.50 : 61,778 = 61,778 : x
  2. Step 2: Convert to fraction form
    28,838.50/61,778 = 61,778/x
  3. Step 3: Cross multiply
    28,838.50x = 61,778 × 61,778
  4. Step 4: Simplify right side
    28,838.50x = 3,816,521,284
  5. Step 5: Solve for x
    x = 3,816,521,284/28,838.50
  6. Step 6: Final answer
    x = 132,341.19

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.