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Finding the Fourth Proportional to 57,649.20, 86,459.40 and 22,102.80

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Solution

The fourth proportional to 57,649.20, 86,459.40 and 22,102.80 is: 33,148.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,649.20 : 86,459.40 = 22,102.80 : x
  2. Step 2: Convert to fraction form
    57,649.20/86,459.40 = 22,102.80/x
  3. Step 3: Cross multiply
    57,649.20x = 86,459.40 × 22,102.80
  4. Step 4: Simplify right side
    57,649.20x = 1,910,994,826.32
  5. Step 5: Solve for x
    x = 1,910,994,826.32/57,649.20
  6. Step 6: Final answer
    x = 33,148.68

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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.