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Finding the Fourth Proportional to 57,995.25, 86,968.29 and 20,564.73

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Solution

The fourth proportional to 57,995.25, 86,968.29 and 20,564.73 is: 30,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,995.25 : 86,968.29 = 20,564.73 : x
  2. Step 2: Convert to fraction form
    57,995.25/86,968.29 = 20,564.73/x
  3. Step 3: Cross multiply
    57,995.25x = 86,968.29 × 20,564.73
  4. Step 4: Simplify right side
    57,995.25x = 1,788,479,402.41
  5. Step 5: Solve for x
    x = 1,788,479,402.41/57,995.25
  6. Step 6: Final answer
    x = 30,838.38

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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.