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Finding the Fourth Proportional to 11,087.20, 15,548 and 11,087.20

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Solution

The fourth proportional to 11,087.20, 15,548 and 11,087.20 is: 15,548.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087.20 : 15,548 = 11,087.20 : x
  2. Step 2: Convert to fraction form
    11,087.20/15,548 = 11,087.20/x
  3. Step 3: Cross multiply
    11,087.20x = 15,548 × 11,087.20
  4. Step 4: Simplify right side
    11,087.20x = 172,383,785.60
  5. Step 5: Solve for x
    x = 172,383,785.60/11,087.20
  6. Step 6: Final answer
    x = 15,548.00

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.