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Finding the Fourth Proportional to 64,795.53, 89,406.99 and 36,108.90

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Solution

The fourth proportional to 64,795.53, 89,406.99 and 36,108.90 is: 49,824.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,795.53 : 89,406.99 = 36,108.90 : x
  2. Step 2: Convert to fraction form
    64,795.53/89,406.99 = 36,108.90/x
  3. Step 3: Cross multiply
    64,795.53x = 89,406.99 × 36,108.90
  4. Step 4: Simplify right side
    64,795.53x = 3,228,388,106.35
  5. Step 5: Solve for x
    x = 3,228,388,106.35/64,795.53
  6. Step 6: Final answer
    x = 49,824.24

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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.