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Finding the Third Proportional to 5,555.25 and 7,813.13

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Solution

The third proportional to 5,555.25 and 7,813.13 is: 10,988.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.25 : 7,813.13 = 7,813.13 : x
  2. Step 2: Convert to fraction form
    5,555.25/7,813.13 = 7,813.13/x
  3. Step 3: Cross multiply
    5,555.25x = 7,813.13 × 7,813.13
  4. Step 4: Simplify right side
    5,555.25x = 61,044,922.27
  5. Step 5: Solve for x
    x = 61,044,922.27/5,555.25
  6. Step 6: Final answer
    x = 10,988.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.