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Finding the Third Proportional to 973.90 and 2,107.90

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Solution

The third proportional to 973.90 and 2,107.90 is: 4,562.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.90 : 2,107.90 = 2,107.90 : x
  2. Step 2: Convert to fraction form
    973.90/2,107.90 = 2,107.90/x
  3. Step 3: Cross multiply
    973.90x = 2,107.90 × 2,107.90
  4. Step 4: Simplify right side
    973.90x = 4,443,235.82
  5. Step 5: Solve for x
    x = 4,443,235.82/973.90
  6. Step 6: Final answer
    x = 4,562.32

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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.