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Finding the Fourth Proportional to 11,243.07, 16,865.15 and 5,397.03

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Solution

The fourth proportional to 11,243.07, 16,865.15 and 5,397.03 is: 8,095.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.07 : 16,865.15 = 5,397.03 : x
  2. Step 2: Convert to fraction form
    11,243.07/16,865.15 = 5,397.03/x
  3. Step 3: Cross multiply
    11,243.07x = 16,865.15 × 5,397.03
  4. Step 4: Simplify right side
    11,243.07x = 91,021,693.52
  5. Step 5: Solve for x
    x = 91,021,693.52/11,243.07
  6. Step 6: Final answer
    x = 8,095.80

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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.