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Finding the Third Proportional to 947.81 and 2,071.13

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Solution

The third proportional to 947.81 and 2,071.13 is: 4,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    947.81 : 2,071.13 = 2,071.13 : x
  2. Step 2: Convert to fraction form
    947.81/2,071.13 = 2,071.13/x
  3. Step 3: Cross multiply
    947.81x = 2,071.13 × 2,071.13
  4. Step 4: Simplify right side
    947.81x = 4,289,558.77
  5. Step 5: Solve for x
    x = 4,289,558.77/947.81
  6. Step 6: Final answer
    x = 4,525.75

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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.