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Finding the Fourth Proportional to 17,842.20, 26,820.90 and 16,459.80

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Solution

The fourth proportional to 17,842.20, 26,820.90 and 16,459.80 is: 24,742.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,842.20 : 26,820.90 = 16,459.80 : x
  2. Step 2: Convert to fraction form
    17,842.20/26,820.90 = 16,459.80/x
  3. Step 3: Cross multiply
    17,842.20x = 26,820.90 × 16,459.80
  4. Step 4: Simplify right side
    17,842.20x = 441,466,649.82
  5. Step 5: Solve for x
    x = 441,466,649.82/17,842.20
  6. Step 6: Final answer
    x = 24,742.84

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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.