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Finding the Fourth Proportional to 56,553.74, 84,811.14 and 28,462.94

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Solution

The fourth proportional to 56,553.74, 84,811.14 and 28,462.94 is: 42,684.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,553.74 : 84,811.14 = 28,462.94 : x
  2. Step 2: Convert to fraction form
    56,553.74/84,811.14 = 28,462.94/x
  3. Step 3: Cross multiply
    56,553.74x = 84,811.14 × 28,462.94
  4. Step 4: Simplify right side
    56,553.74x = 2,413,974,389.15
  5. Step 5: Solve for x
    x = 2,413,974,389.15/56,553.74
  6. Step 6: Final answer
    x = 42,684.61

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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.