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Finding the Fourth Proportional to 33,319.68, 49,987.43 and 9,945.51

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Solution

The fourth proportional to 33,319.68, 49,987.43 and 9,945.51 is: 14,920.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,319.68 : 49,987.43 = 9,945.51 : x
  2. Step 2: Convert to fraction form
    33,319.68/49,987.43 = 9,945.51/x
  3. Step 3: Cross multiply
    33,319.68x = 49,987.43 × 9,945.51
  4. Step 4: Simplify right side
    33,319.68x = 497,150,435.21
  5. Step 5: Solve for x
    x = 497,150,435.21/33,319.68
  6. Step 6: Final answer
    x = 14,920.62

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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.