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Finding the Fourth Proportional to 17,321.66, 23,903.89 and 9,363.89

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Solution

The fourth proportional to 17,321.66, 23,903.89 and 9,363.89 is: 12,922.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,321.66 : 23,903.89 = 9,363.89 : x
  2. Step 2: Convert to fraction form
    17,321.66/23,903.89 = 9,363.89/x
  3. Step 3: Cross multiply
    17,321.66x = 23,903.89 × 9,363.89
  4. Step 4: Simplify right side
    17,321.66x = 223,833,351.09
  5. Step 5: Solve for x
    x = 223,833,351.09/17,321.66
  6. Step 6: Final answer
    x = 12,922.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.