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Finding the Fourth Proportional to 23,999.67, 33,119.64 and 13,389.75

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Solution

The fourth proportional to 23,999.67, 33,119.64 and 13,389.75 is: 18,477.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,999.67 : 33,119.64 = 13,389.75 : x
  2. Step 2: Convert to fraction form
    23,999.67/33,119.64 = 13,389.75/x
  3. Step 3: Cross multiply
    23,999.67x = 33,119.64 × 13,389.75
  4. Step 4: Simplify right side
    23,999.67x = 443,463,699.69
  5. Step 5: Solve for x
    x = 443,463,699.69/23,999.67
  6. Step 6: Final answer
    x = 18,477.91

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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.