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Finding the Fourth Proportional to 56,930.56, 85,447.93 and 28,869.98

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Solution

The fourth proportional to 56,930.56, 85,447.93 and 28,869.98 is: 43,331.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,930.56 : 85,447.93 = 28,869.98 : x
  2. Step 2: Convert to fraction form
    56,930.56/85,447.93 = 28,869.98/x
  3. Step 3: Cross multiply
    56,930.56x = 85,447.93 × 28,869.98
  4. Step 4: Simplify right side
    56,930.56x = 2,466,879,885.79
  5. Step 5: Solve for x
    x = 2,466,879,885.79/56,930.56
  6. Step 6: Final answer
    x = 43,331.38

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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.