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Finding the Third Proportional to 1,769.63 and 4,151.81

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Solution

The third proportional to 1,769.63 and 4,151.81 is: 9,740.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769.63 : 4,151.81 = 4,151.81 : x
  2. Step 2: Convert to fraction form
    1,769.63/4,151.81 = 4,151.81/x
  3. Step 3: Cross multiply
    1,769.63x = 4,151.81 × 4,151.81
  4. Step 4: Simplify right side
    1,769.63x = 17,237,547.04
  5. Step 5: Solve for x
    x = 17,237,547.04/1,769.63
  6. Step 6: Final answer
    x = 9,740.79

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.