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Finding the Fourth Proportional to 16,540.90, 24,755.90 and 13,579.18

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Solution

The fourth proportional to 16,540.90, 24,755.90 and 13,579.18 is: 20,323.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,540.90 : 24,755.90 = 13,579.18 : x
  2. Step 2: Convert to fraction form
    16,540.90/24,755.90 = 13,579.18/x
  3. Step 3: Cross multiply
    16,540.90x = 24,755.90 × 13,579.18
  4. Step 4: Simplify right side
    16,540.90x = 336,164,822.16
  5. Step 5: Solve for x
    x = 336,164,822.16/16,540.90
  6. Step 6: Final answer
    x = 20,323.25

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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.