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Finding the Fourth Proportional to 56,495.60, 84,840.60 and 36,861.20

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Solution

The fourth proportional to 56,495.60, 84,840.60 and 36,861.20 is: 55,355.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,495.60 : 84,840.60 = 36,861.20 : x
  2. Step 2: Convert to fraction form
    56,495.60/84,840.60 = 36,861.20/x
  3. Step 3: Cross multiply
    56,495.60x = 84,840.60 × 36,861.20
  4. Step 4: Simplify right side
    56,495.60x = 3,127,326,324.72
  5. Step 5: Solve for x
    x = 3,127,326,324.72/56,495.60
  6. Step 6: Final answer
    x = 55,355.22

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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.