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Finding the Third Proportional to 3,156.75 and 4,715.63

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Solution

The third proportional to 3,156.75 and 4,715.63 is: 7,044.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.75 : 4,715.63 = 4,715.63 : x
  2. Step 2: Convert to fraction form
    3,156.75/4,715.63 = 4,715.63/x
  3. Step 3: Cross multiply
    3,156.75x = 4,715.63 × 4,715.63
  4. Step 4: Simplify right side
    3,156.75x = 22,237,119.14
  5. Step 5: Solve for x
    x = 22,237,119.14/3,156.75
  6. Step 6: Final answer
    x = 7,044.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.