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Finding the Fourth Proportional to 8,805.51, 13,210.29 and 2,961.97

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Solution

The fourth proportional to 8,805.51, 13,210.29 and 2,961.97 is: 4,443.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.51 : 13,210.29 = 2,961.97 : x
  2. Step 2: Convert to fraction form
    8,805.51/13,210.29 = 2,961.97/x
  3. Step 3: Cross multiply
    8,805.51x = 13,210.29 × 2,961.97
  4. Step 4: Simplify right side
    8,805.51x = 39,128,449.65
  5. Step 5: Solve for x
    x = 39,128,449.65/8,805.51
  6. Step 6: Final answer
    x = 4,443.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.