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Finding the Third Proportional to 2,091.75 and 4,547.63

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Solution

The third proportional to 2,091.75 and 4,547.63 is: 9,886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.75 : 4,547.63 = 4,547.63 : x
  2. Step 2: Convert to fraction form
    2,091.75/4,547.63 = 4,547.63/x
  3. Step 3: Cross multiply
    2,091.75x = 4,547.63 × 4,547.63
  4. Step 4: Simplify right side
    2,091.75x = 20,680,893.14
  5. Step 5: Solve for x
    x = 20,680,893.14/2,091.75
  6. Step 6: Final answer
    x = 9,886.89

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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.