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Finding the Third Proportional to 1,776 and 4,284

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Solution

The third proportional to 1,776 and 4,284 is: 10,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776 : 4,284 = 4,284 : x
  2. Step 2: Convert to fraction form
    1,776/4,284 = 4,284/x
  3. Step 3: Cross multiply
    1,776x = 4,284 × 4,284
  4. Step 4: Simplify right side
    1,776x = 18,352,656
  5. Step 5: Solve for x
    x = 18,352,656/1,776
  6. Step 6: Final answer
    x = 10,333.70

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.