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Finding the Third Proportional to 1,715.63 and 3,821.06

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Solution

The third proportional to 1,715.63 and 3,821.06 is: 8,510.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.63 : 3,821.06 = 3,821.06 : x
  2. Step 2: Convert to fraction form
    1,715.63/3,821.06 = 3,821.06/x
  3. Step 3: Cross multiply
    1,715.63x = 3,821.06 × 3,821.06
  4. Step 4: Simplify right side
    1,715.63x = 14,600,518.63
  5. Step 5: Solve for x
    x = 14,600,518.63/1,715.63
  6. Step 6: Final answer
    x = 8,510.32

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.