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Finding the Fourth Proportional to 62,625.15, 86,324.54 and 47,457.09

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Solution

The fourth proportional to 62,625.15, 86,324.54 and 47,457.09 is: 65,416.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,625.15 : 86,324.54 = 47,457.09 : x
  2. Step 2: Convert to fraction form
    62,625.15/86,324.54 = 47,457.09/x
  3. Step 3: Cross multiply
    62,625.15x = 86,324.54 × 47,457.09
  4. Step 4: Simplify right side
    62,625.15x = 4,096,711,226.70
  5. Step 5: Solve for x
    x = 4,096,711,226.70/62,625.15
  6. Step 6: Final answer
    x = 65,416.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.