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Finding the Third Proportional to 15,316 and 33,440

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Solution

The third proportional to 15,316 and 33,440 is: 73,010.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316 : 33,440 = 33,440 : x
  2. Step 2: Convert to fraction form
    15,316/33,440 = 33,440/x
  3. Step 3: Cross multiply
    15,316x = 33,440 × 33,440
  4. Step 4: Simplify right side
    15,316x = 1,118,233,600
  5. Step 5: Solve for x
    x = 1,118,233,600/15,316
  6. Step 6: Final answer
    x = 73,010.81

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.