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Finding the Third Proportional to 1,748.81 and 3,779.63

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Solution

The third proportional to 1,748.81 and 3,779.63 is: 8,168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.81 : 3,779.63 = 3,779.63 : x
  2. Step 2: Convert to fraction form
    1,748.81/3,779.63 = 3,779.63/x
  3. Step 3: Cross multiply
    1,748.81x = 3,779.63 × 3,779.63
  4. Step 4: Simplify right side
    1,748.81x = 14,285,565.14
  5. Step 5: Solve for x
    x = 14,285,565.14/1,748.81
  6. Step 6: Final answer
    x = 8,168.72

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.