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Finding the Fourth Proportional to 57,910.78, 79,916.12 and 32,760.28

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Solution

The fourth proportional to 57,910.78, 79,916.12 and 32,760.28 is: 45,208.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,910.78 : 79,916.12 = 32,760.28 : x
  2. Step 2: Convert to fraction form
    57,910.78/79,916.12 = 32,760.28/x
  3. Step 3: Cross multiply
    57,910.78x = 79,916.12 × 32,760.28
  4. Step 4: Simplify right side
    57,910.78x = 2,618,074,467.71
  5. Step 5: Solve for x
    x = 2,618,074,467.71/57,910.78
  6. Step 6: Final answer
    x = 45,208.76

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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.