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Finding the Fourth Proportional to 57,649.36, 79,575.96 and 33,783.76

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Solution

The fourth proportional to 57,649.36, 79,575.96 and 33,783.76 is: 46,633.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,649.36 : 79,575.96 = 33,783.76 : x
  2. Step 2: Convert to fraction form
    57,649.36/79,575.96 = 33,783.76/x
  3. Step 3: Cross multiply
    57,649.36x = 79,575.96 × 33,783.76
  4. Step 4: Simplify right side
    57,649.36x = 2,688,375,134.41
  5. Step 5: Solve for x
    x = 2,688,375,134.41/57,649.36
  6. Step 6: Final answer
    x = 46,633.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.