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Finding the Third Proportional to 7,057.76 and 15,345.70

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Solution

The third proportional to 7,057.76 and 15,345.70 is: 33,366.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,057.76 : 15,345.70 = 15,345.70 : x
  2. Step 2: Convert to fraction form
    7,057.76/15,345.70 = 15,345.70/x
  3. Step 3: Cross multiply
    7,057.76x = 15,345.70 × 15,345.70
  4. Step 4: Simplify right side
    7,057.76x = 235,490,604.40
  5. Step 5: Solve for x
    x = 235,490,604.40/7,057.76
  6. Step 6: Final answer
    x = 33,366.21

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.