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Finding the Fourth Proportional to 57,869.99, 86,804.92 and 38,004.90

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Solution

The fourth proportional to 57,869.99, 86,804.92 and 38,004.90 is: 57,007.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,869.99 : 86,804.92 = 38,004.90 : x
  2. Step 2: Convert to fraction form
    57,869.99/86,804.92 = 38,004.90/x
  3. Step 3: Cross multiply
    57,869.99x = 86,804.92 × 38,004.90
  4. Step 4: Simplify right side
    57,869.99x = 3,299,011,812.32
  5. Step 5: Solve for x
    x = 3,299,011,812.32/57,869.99
  6. Step 6: Final answer
    x = 57,007.29

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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.