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Finding the Fourth Proportional to 11,047.88, 15,253.08 and 6,858.56

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Solution

The fourth proportional to 11,047.88, 15,253.08 and 6,858.56 is: 9,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,047.88 : 15,253.08 = 6,858.56 : x
  2. Step 2: Convert to fraction form
    11,047.88/15,253.08 = 6,858.56/x
  3. Step 3: Cross multiply
    11,047.88x = 15,253.08 × 6,858.56
  4. Step 4: Simplify right side
    11,047.88x = 104,614,164.36
  5. Step 5: Solve for x
    x = 104,614,164.36/11,047.88
  6. Step 6: Final answer
    x = 9,469.16

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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.