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Finding the Fourth Proportional to 11,499.54, 17,223.63 and 9,999.54

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Solution

The fourth proportional to 11,499.54, 17,223.63 and 9,999.54 is: 14,976.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,499.54 : 17,223.63 = 9,999.54 : x
  2. Step 2: Convert to fraction form
    11,499.54/17,223.63 = 9,999.54/x
  3. Step 3: Cross multiply
    11,499.54x = 17,223.63 × 9,999.54
  4. Step 4: Simplify right side
    11,499.54x = 172,228,377.13
  5. Step 5: Solve for x
    x = 172,228,377.13/11,499.54
  6. Step 6: Final answer
    x = 14,976.98

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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.