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Finding the Fourth Proportional to 62,674.23, 86,491.80 and 34,379.91

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Solution

The fourth proportional to 62,674.23, 86,491.80 and 34,379.91 is: 47,445.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,674.23 : 86,491.80 = 34,379.91 : x
  2. Step 2: Convert to fraction form
    62,674.23/86,491.80 = 34,379.91/x
  3. Step 3: Cross multiply
    62,674.23x = 86,491.80 × 34,379.91
  4. Step 4: Simplify right side
    62,674.23x = 2,973,580,299.74
  5. Step 5: Solve for x
    x = 2,973,580,299.74/62,674.23
  6. Step 6: Final answer
    x = 47,445.02

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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.