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Finding the Fourth Proportional to 13,474.86, 18,595.31 and 7,506.54

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Solution

The fourth proportional to 13,474.86, 18,595.31 and 7,506.54 is: 10,359.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,474.86 : 18,595.31 = 7,506.54 : x
  2. Step 2: Convert to fraction form
    13,474.86/18,595.31 = 7,506.54/x
  3. Step 3: Cross multiply
    13,474.86x = 18,595.31 × 7,506.54
  4. Step 4: Simplify right side
    13,474.86x = 139,586,457.09
  5. Step 5: Solve for x
    x = 139,586,457.09/13,474.86
  6. Step 6: Final answer
    x = 10,359.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.