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Finding the Fourth Proportional to 12,058.80, 18,116.00 and 11,560.59

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Solution

The fourth proportional to 12,058.80, 18,116.00 and 11,560.59 is: 17,367.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,058.80 : 18,116.00 = 11,560.59 : x
  2. Step 2: Convert to fraction form
    12,058.80/18,116.00 = 11,560.59/x
  3. Step 3: Cross multiply
    12,058.80x = 18,116.00 × 11,560.59
  4. Step 4: Simplify right side
    12,058.80x = 209,431,590.64
  5. Step 5: Solve for x
    x = 209,431,590.64/12,058.80
  6. Step 6: Final answer
    x = 17,367.53

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1.5x scale

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.