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Finding the Fourth Proportional to 11,058.60, 16,604.48 and 9,515.40

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Solution

The fourth proportional to 11,058.60, 16,604.48 and 9,515.40 is: 14,287.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,058.60 : 16,604.48 = 9,515.40 : x
  2. Step 2: Convert to fraction form
    11,058.60/16,604.48 = 9,515.40/x
  3. Step 3: Cross multiply
    11,058.60x = 16,604.48 × 9,515.40
  4. Step 4: Simplify right side
    11,058.60x = 157,998,268.99
  5. Step 5: Solve for x
    x = 157,998,268.99/11,058.60
  6. Step 6: Final answer
    x = 14,287.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.