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Finding the Third Proportional to 8,768 and 19,216

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Solution

The third proportional to 8,768 and 19,216 is: 42,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768 : 19,216 = 19,216 : x
  2. Step 2: Convert to fraction form
    8,768/19,216 = 19,216/x
  3. Step 3: Cross multiply
    8,768x = 19,216 × 19,216
  4. Step 4: Simplify right side
    8,768x = 369,254,656
  5. Step 5: Solve for x
    x = 369,254,656/8,768
  6. Step 6: Final answer
    x = 42,113.90

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.