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Finding the Fourth Proportional to 17,309.50, 23,887.11 and 9,858.94

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Solution

The fourth proportional to 17,309.50, 23,887.11 and 9,858.94 is: 13,605.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,309.50 : 23,887.11 = 9,858.94 : x
  2. Step 2: Convert to fraction form
    17,309.50/23,887.11 = 9,858.94/x
  3. Step 3: Cross multiply
    17,309.50x = 23,887.11 × 9,858.94
  4. Step 4: Simplify right side
    17,309.50x = 235,501,584.26
  5. Step 5: Solve for x
    x = 235,501,584.26/17,309.50
  6. Step 6: Final answer
    x = 13,605.34

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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.