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Finding the Fourth Proportional to 56,992.68, 85,506.30 and 40,384.89

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Solution

The fourth proportional to 56,992.68, 85,506.30 and 40,384.89 is: 60,589.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,992.68 : 85,506.30 = 40,384.89 : x
  2. Step 2: Convert to fraction form
    56,992.68/85,506.30 = 40,384.89/x
  3. Step 3: Cross multiply
    56,992.68x = 85,506.30 × 40,384.89
  4. Step 4: Simplify right side
    56,992.68x = 3,453,162,519.81
  5. Step 5: Solve for x
    x = 3,453,162,519.81/56,992.68
  6. Step 6: Final answer
    x = 60,589.58

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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.