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Finding the Fourth Proportional to 46,573.65, 69,842.79 and 19,918.49

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Solution

The fourth proportional to 46,573.65, 69,842.79 and 19,918.49 is: 29,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,573.65 : 69,842.79 = 19,918.49 : x
  2. Step 2: Convert to fraction form
    46,573.65/69,842.79 = 19,918.49/x
  3. Step 3: Cross multiply
    46,573.65x = 69,842.79 × 19,918.49
  4. Step 4: Simplify right side
    46,573.65x = 1,391,162,564.97
  5. Step 5: Solve for x
    x = 1,391,162,564.97/46,573.65
  6. Step 6: Final answer
    x = 29,870.16

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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.