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Finding the Fourth Proportional to 62,774.64, 86,662.77 and 48,402.96

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Solution

The fourth proportional to 62,774.64, 86,662.77 and 48,402.96 is: 66,822.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,774.64 : 86,662.77 = 48,402.96 : x
  2. Step 2: Convert to fraction form
    62,774.64/86,662.77 = 48,402.96/x
  3. Step 3: Cross multiply
    62,774.64x = 86,662.77 × 48,402.96
  4. Step 4: Simplify right side
    62,774.64x = 4,194,734,589.80
  5. Step 5: Solve for x
    x = 4,194,734,589.80/62,774.64
  6. Step 6: Final answer
    x = 66,822.12

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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.