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Finding the Fourth Proportional to 11,210.56, 15,470.64 and 6,242.56

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Solution

The fourth proportional to 11,210.56, 15,470.64 and 6,242.56 is: 8,614.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.56 : 15,470.64 = 6,242.56 : x
  2. Step 2: Convert to fraction form
    11,210.56/15,470.64 = 6,242.56/x
  3. Step 3: Cross multiply
    11,210.56x = 15,470.64 × 6,242.56
  4. Step 4: Simplify right side
    11,210.56x = 96,576,398.44
  5. Step 5: Solve for x
    x = 96,576,398.44/11,210.56
  6. Step 6: Final answer
    x = 8,614.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.