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Finding the Third Proportional to 7,120.13 and 17,461.13

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Solution

The third proportional to 7,120.13 and 17,461.13 is: 42,821.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.13 : 17,461.13 = 17,461.13 : x
  2. Step 2: Convert to fraction form
    7,120.13/17,461.13 = 17,461.13/x
  3. Step 3: Cross multiply
    7,120.13x = 17,461.13 × 17,461.13
  4. Step 4: Simplify right side
    7,120.13x = 304,890,886.27
  5. Step 5: Solve for x
    x = 304,890,886.27/7,120.13
  6. Step 6: Final answer
    x = 42,821.00

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Why These Related Problems?

These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.