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Finding the Third Proportional to 13,480 and 19,410

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Solution

The third proportional to 13,480 and 19,410 is: 27,948.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480 : 19,410 = 19,410 : x
  2. Step 2: Convert to fraction form
    13,480/19,410 = 19,410/x
  3. Step 3: Cross multiply
    13,480x = 19,410 × 19,410
  4. Step 4: Simplify right side
    13,480x = 376,748,100
  5. Step 5: Solve for x
    x = 376,748,100/13,480
  6. Step 6: Final answer
    x = 27,948.67

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.