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Finding the Fourth Proportional to 46,458.79, 69,696.59 and 16,918.09

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Solution

The fourth proportional to 46,458.79, 69,696.59 and 16,918.09 is: 25,380.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,458.79 : 69,696.59 = 16,918.09 : x
  2. Step 2: Convert to fraction form
    46,458.79/69,696.59 = 16,918.09/x
  3. Step 3: Cross multiply
    46,458.79x = 69,696.59 × 16,918.09
  4. Step 4: Simplify right side
    46,458.79x = 1,179,133,182.31
  5. Step 5: Solve for x
    x = 1,179,133,182.31/46,458.79
  6. Step 6: Final answer
    x = 25,380.20

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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.