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Finding the Fourth Proportional to 39,199.41, 58,803.98 and 12,913.29

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Solution

The fourth proportional to 39,199.41, 58,803.98 and 12,913.29 is: 19,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,199.41 : 58,803.98 = 12,913.29 : x
  2. Step 2: Convert to fraction form
    39,199.41/58,803.98 = 12,913.29/x
  3. Step 3: Cross multiply
    39,199.41x = 58,803.98 × 12,913.29
  4. Step 4: Simplify right side
    39,199.41x = 759,352,782.33
  5. Step 5: Solve for x
    x = 759,352,782.33/39,199.41
  6. Step 6: Final answer
    x = 19,371.54

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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.