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Finding the Fourth Proportional to 46,979.66, 70,481.00 and 15,391.41

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Solution

The fourth proportional to 46,979.66, 70,481.00 and 15,391.41 is: 23,090.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,979.66 : 70,481.00 = 15,391.41 : x
  2. Step 2: Convert to fraction form
    46,979.66/70,481.00 = 15,391.41/x
  3. Step 3: Cross multiply
    46,979.66x = 70,481.00 × 15,391.41
  4. Step 4: Simplify right side
    46,979.66x = 1,084,801,891.25
  5. Step 5: Solve for x
    x = 1,084,801,891.25/46,979.66
  6. Step 6: Final answer
    x = 23,090.89

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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.