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Finding the Fourth Proportional to 19,371.93, 29,048.32 and 6,890.10

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Solution

The fourth proportional to 19,371.93, 29,048.32 and 6,890.10 is: 10,331.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,371.93 : 29,048.32 = 6,890.10 : x
  2. Step 2: Convert to fraction form
    19,371.93/29,048.32 = 6,890.10/x
  3. Step 3: Cross multiply
    19,371.93x = 29,048.32 × 6,890.10
  4. Step 4: Simplify right side
    19,371.93x = 200,145,829.63
  5. Step 5: Solve for x
    x = 200,145,829.63/19,371.93
  6. Step 6: Final answer
    x = 10,331.74

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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.