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Finding the Fourth Proportional to 12,673.79, 19,004.17 and 7,409.96

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Solution

The fourth proportional to 12,673.79, 19,004.17 and 7,409.96 is: 11,111.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,673.79 : 19,004.17 = 7,409.96 : x
  2. Step 2: Convert to fraction form
    12,673.79/19,004.17 = 7,409.96/x
  3. Step 3: Cross multiply
    12,673.79x = 19,004.17 × 7,409.96
  4. Step 4: Simplify right side
    12,673.79x = 140,820,102.48
  5. Step 5: Solve for x
    x = 140,820,102.48/12,673.79
  6. Step 6: Final answer
    x = 11,111.13

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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.