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Finding the Third Proportional to 25,688 and 40,704

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Solution

The third proportional to 25,688 and 40,704 is: 64,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,688 : 40,704 = 40,704 : x
  2. Step 2: Convert to fraction form
    25,688/40,704 = 40,704/x
  3. Step 3: Cross multiply
    25,688x = 40,704 × 40,704
  4. Step 4: Simplify right side
    25,688x = 1,656,815,616
  5. Step 5: Solve for x
    x = 1,656,815,616/25,688
  6. Step 6: Final answer
    x = 64,497.65

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.