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Finding the Fourth Proportional to 64,829.16, 89,471.79 and 36,539.91

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Solution

The fourth proportional to 64,829.16, 89,471.79 and 36,539.91 is: 50,429.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,829.16 : 89,471.79 = 36,539.91 : x
  2. Step 2: Convert to fraction form
    64,829.16/89,471.79 = 36,539.91/x
  3. Step 3: Cross multiply
    64,829.16x = 89,471.79 × 36,539.91
  4. Step 4: Simplify right side
    64,829.16x = 3,269,291,154.14
  5. Step 5: Solve for x
    x = 3,269,291,154.14/64,829.16
  6. Step 6: Final answer
    x = 50,429.33

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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.