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Finding the Fourth Proportional to 11,058.58, 15,258.09 and 7,023.88

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Solution

The fourth proportional to 11,058.58, 15,258.09 and 7,023.88 is: 9,691.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,058.58 : 15,258.09 = 7,023.88 : x
  2. Step 2: Convert to fraction form
    11,058.58/15,258.09 = 7,023.88/x
  3. Step 3: Cross multiply
    11,058.58x = 15,258.09 × 7,023.88
  4. Step 4: Simplify right side
    11,058.58x = 107,170,993.19
  5. Step 5: Solve for x
    x = 107,170,993.19/11,058.58
  6. Step 6: Final answer
    x = 9,691.21

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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.