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Finding the Fourth Proportional to 57,807.48, 86,628 and 34,059

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Solution

The fourth proportional to 57,807.48, 86,628 and 34,059 is: 51,039.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,807.48 : 86,628 = 34,059 : x
  2. Step 2: Convert to fraction form
    57,807.48/86,628 = 34,059/x
  3. Step 3: Cross multiply
    57,807.48x = 86,628 × 34,059
  4. Step 4: Simplify right side
    57,807.48x = 2,950,463,052
  5. Step 5: Solve for x
    x = 2,950,463,052/57,807.48
  6. Step 6: Final answer
    x = 51,039.47

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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.