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Finding the Third Proportional to 946.13 and 2,078.72

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Solution

The third proportional to 946.13 and 2,078.72 is: 4,567.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    946.13 : 2,078.72 = 2,078.72 : x
  2. Step 2: Convert to fraction form
    946.13/2,078.72 = 2,078.72/x
  3. Step 3: Cross multiply
    946.13x = 2,078.72 × 2,078.72
  4. Step 4: Simplify right side
    946.13x = 4,321,071.64
  5. Step 5: Solve for x
    x = 4,321,071.64/946.13
  6. Step 6: Final answer
    x = 4,567.13

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.