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Finding the Fourth Proportional to 12,321.48, 17,004.45 and 6,945.24

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Solution

The fourth proportional to 12,321.48, 17,004.45 and 6,945.24 is: 9,584.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.48 : 17,004.45 = 6,945.24 : x
  2. Step 2: Convert to fraction form
    12,321.48/17,004.45 = 6,945.24/x
  3. Step 3: Cross multiply
    12,321.48x = 17,004.45 × 6,945.24
  4. Step 4: Simplify right side
    12,321.48x = 118,099,986.32
  5. Step 5: Solve for x
    x = 118,099,986.32/12,321.48
  6. Step 6: Final answer
    x = 9,584.89

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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.