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Finding the Fourth Proportional to 33,978.40, 46,888.63 and 18,872.02

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Solution

The fourth proportional to 33,978.40, 46,888.63 and 18,872.02 is: 26,042.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,978.40 : 46,888.63 = 18,872.02 : x
  2. Step 2: Convert to fraction form
    33,978.40/46,888.63 = 18,872.02/x
  3. Step 3: Cross multiply
    33,978.40x = 46,888.63 × 18,872.02
  4. Step 4: Simplify right side
    33,978.40x = 884,883,163.13
  5. Step 5: Solve for x
    x = 884,883,163.13/33,978.40
  6. Step 6: Final answer
    x = 26,042.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.