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Finding the Fourth Proportional to 56,986.04, 85,405.04 and 23,212.68

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Solution

The fourth proportional to 56,986.04, 85,405.04 and 23,212.68 is: 34,788.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,986.04 : 85,405.04 = 23,212.68 : x
  2. Step 2: Convert to fraction form
    56,986.04/85,405.04 = 23,212.68/x
  3. Step 3: Cross multiply
    56,986.04x = 85,405.04 × 23,212.68
  4. Step 4: Simplify right side
    56,986.04x = 1,982,479,863.91
  5. Step 5: Solve for x
    x = 1,982,479,863.91/56,986.04
  6. Step 6: Final answer
    x = 34,788.87

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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.