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Finding the Fourth Proportional to 11,393.71, 15,719.12 and 6,676.27

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Solution

The fourth proportional to 11,393.71, 15,719.12 and 6,676.27 is: 9,210.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,393.71 : 15,719.12 = 6,676.27 : x
  2. Step 2: Convert to fraction form
    11,393.71/15,719.12 = 6,676.27/x
  3. Step 3: Cross multiply
    11,393.71x = 15,719.12 × 6,676.27
  4. Step 4: Simplify right side
    11,393.71x = 104,945,055.90
  5. Step 5: Solve for x
    x = 104,945,055.90/11,393.71
  6. Step 6: Final answer
    x = 9,210.79

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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.