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Finding the Third Proportional to 8,871 and 13,248

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Solution

The third proportional to 8,871 and 13,248 is: 19,784.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871 : 13,248 = 13,248 : x
  2. Step 2: Convert to fraction form
    8,871/13,248 = 13,248/x
  3. Step 3: Cross multiply
    8,871x = 13,248 × 13,248
  4. Step 4: Simplify right side
    8,871x = 175,509,504
  5. Step 5: Solve for x
    x = 175,509,504/8,871
  6. Step 6: Final answer
    x = 19,784.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.