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Finding the Third Proportional to 947.06 and 1,421.44

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Solution

The third proportional to 947.06 and 1,421.44 is: 2,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    947.06 : 1,421.44 = 1,421.44 : x
  2. Step 2: Convert to fraction form
    947.06/1,421.44 = 1,421.44/x
  3. Step 3: Cross multiply
    947.06x = 1,421.44 × 1,421.44
  4. Step 4: Simplify right side
    947.06x = 2,020,484.57
  5. Step 5: Solve for x
    x = 2,020,484.57/947.06
  6. Step 6: Final answer
    x = 2,133.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.