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Finding the Fourth Proportional to 57,493.51, 86,240.64 and 20,053.44

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Solution

The fourth proportional to 57,493.51, 86,240.64 and 20,053.44 is: 30,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,493.51 : 86,240.64 = 20,053.44 : x
  2. Step 2: Convert to fraction form
    57,493.51/86,240.64 = 20,053.44/x
  3. Step 3: Cross multiply
    57,493.51x = 86,240.64 × 20,053.44
  4. Step 4: Simplify right side
    57,493.51x = 1,729,421,499.80
  5. Step 5: Solve for x
    x = 1,729,421,499.80/57,493.51
  6. Step 6: Final answer
    x = 30,080.29

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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.