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Finding the Fourth Proportional to 63,015.98, 94,542.42 and 18,643.92

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Solution

The fourth proportional to 63,015.98, 94,542.42 and 18,643.92 is: 27,971.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,015.98 : 94,542.42 = 18,643.92 : x
  2. Step 2: Convert to fraction form
    63,015.98/94,542.42 = 18,643.92/x
  3. Step 3: Cross multiply
    63,015.98x = 94,542.42 × 18,643.92
  4. Step 4: Simplify right side
    63,015.98x = 1,762,641,315.09
  5. Step 5: Solve for x
    x = 1,762,641,315.09/63,015.98
  6. Step 6: Final answer
    x = 27,971.34

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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.