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Finding the Third Proportional to 14,912 and 19,440

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Solution

The third proportional to 14,912 and 19,440 is: 25,342.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,912 : 19,440 = 19,440 : x
  2. Step 2: Convert to fraction form
    14,912/19,440 = 19,440/x
  3. Step 3: Cross multiply
    14,912x = 19,440 × 19,440
  4. Step 4: Simplify right side
    14,912x = 377,913,600
  5. Step 5: Solve for x
    x = 377,913,600/14,912
  6. Step 6: Final answer
    x = 25,342.92

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.