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Finding the Fourth Proportional to 17,213.85, 25,802.33 and 8,891.64

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Solution

The fourth proportional to 17,213.85, 25,802.33 and 8,891.64 is: 13,327.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,213.85 : 25,802.33 = 8,891.64 : x
  2. Step 2: Convert to fraction form
    17,213.85/25,802.33 = 8,891.64/x
  3. Step 3: Cross multiply
    17,213.85x = 25,802.33 × 8,891.64
  4. Step 4: Simplify right side
    17,213.85x = 229,424,985.06
  5. Step 5: Solve for x
    x = 229,424,985.06/17,213.85
  6. Step 6: Final answer
    x = 13,327.93

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1.5x scale

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.