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Finding the Fourth Proportional to 30,960.99, 46,448.53 and 11,239.53

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Solution

The fourth proportional to 30,960.99, 46,448.53 and 11,239.53 is: 16,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,960.99 : 46,448.53 = 11,239.53 : x
  2. Step 2: Convert to fraction form
    30,960.99/46,448.53 = 11,239.53/x
  3. Step 3: Cross multiply
    30,960.99x = 46,448.53 × 11,239.53
  4. Step 4: Simplify right side
    30,960.99x = 522,059,646.39
  5. Step 5: Solve for x
    x = 522,059,646.39/30,960.99
  6. Step 6: Final answer
    x = 16,861.85

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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.