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Finding the Fourth Proportional to 11,224.38, 15,490.96 and 6,750.38

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Solution

The fourth proportional to 11,224.38, 15,490.96 and 6,750.38 is: 9,316.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,224.38 : 15,490.96 = 6,750.38 : x
  2. Step 2: Convert to fraction form
    11,224.38/15,490.96 = 6,750.38/x
  3. Step 3: Cross multiply
    11,224.38x = 15,490.96 × 6,750.38
  4. Step 4: Simplify right side
    11,224.38x = 104,569,866.56
  5. Step 5: Solve for x
    x = 104,569,866.56/11,224.38
  6. Step 6: Final answer
    x = 9,316.32

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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.