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Finding the Third Proportional to 15,216 and 26,388

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Solution

The third proportional to 15,216 and 26,388 is: 45,762.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216 : 26,388 = 26,388 : x
  2. Step 2: Convert to fraction form
    15,216/26,388 = 26,388/x
  3. Step 3: Cross multiply
    15,216x = 26,388 × 26,388
  4. Step 4: Simplify right side
    15,216x = 696,326,544
  5. Step 5: Solve for x
    x = 696,326,544/15,216
  6. Step 6: Final answer
    x = 45,762.79

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Why These Related Problems?

These problems maintain the same ratio (1.73) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.