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Finding the Fourth Proportional to 46,999, 70,500.42 and 11,939.56

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Solution

The fourth proportional to 46,999, 70,500.42 and 11,939.56 is: 17,909.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,999 : 70,500.42 = 11,939.56 : x
  2. Step 2: Convert to fraction form
    46,999/70,500.42 = 11,939.56/x
  3. Step 3: Cross multiply
    46,999x = 70,500.42 × 11,939.56
  4. Step 4: Simplify right side
    46,999x = 841,743,994.62
  5. Step 5: Solve for x
    x = 841,743,994.62/46,999
  6. Step 6: Final answer
    x = 17,909.83

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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.