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Finding the Fourth Proportional to 16,720.60, 25,080.90 and 14,906.20

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Solution

The fourth proportional to 16,720.60, 25,080.90 and 14,906.20 is: 22,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.60 : 25,080.90 = 14,906.20 : x
  2. Step 2: Convert to fraction form
    16,720.60/25,080.90 = 14,906.20/x
  3. Step 3: Cross multiply
    16,720.60x = 25,080.90 × 14,906.20
  4. Step 4: Simplify right side
    16,720.60x = 373,860,911.58
  5. Step 5: Solve for x
    x = 373,860,911.58/16,720.60
  6. Step 6: Final answer
    x = 22,359.30

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Similar ratio
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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.