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Finding the Third Proportional to 3,423.94 and 5,159.53

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Solution

The third proportional to 3,423.94 and 5,159.53 is: 7,774.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.94 : 5,159.53 = 5,159.53 : x
  2. Step 2: Convert to fraction form
    3,423.94/5,159.53 = 5,159.53/x
  3. Step 3: Cross multiply
    3,423.94x = 5,159.53 × 5,159.53
  4. Step 4: Simplify right side
    3,423.94x = 26,620,762.72
  5. Step 5: Solve for x
    x = 26,620,762.72/3,423.94
  6. Step 6: Final answer
    x = 7,774.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.