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Finding the Third Proportional to 12,488 and 19,335

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Solution

The third proportional to 12,488 and 19,335 is: 29,936.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488 : 19,335 = 19,335 : x
  2. Step 2: Convert to fraction form
    12,488/19,335 = 19,335/x
  3. Step 3: Cross multiply
    12,488x = 19,335 × 19,335
  4. Step 4: Simplify right side
    12,488x = 373,842,225
  5. Step 5: Solve for x
    x = 373,842,225/12,488
  6. Step 6: Final answer
    x = 29,936.12

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.