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Finding the Fourth Proportional to 63,978.15, 95,963.76 and 19,605.03

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Solution

The fourth proportional to 63,978.15, 95,963.76 and 19,605.03 is: 29,406.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,978.15 : 95,963.76 = 19,605.03 : x
  2. Step 2: Convert to fraction form
    63,978.15/95,963.76 = 19,605.03/x
  3. Step 3: Cross multiply
    63,978.15x = 95,963.76 × 19,605.03
  4. Step 4: Simplify right side
    63,978.15x = 1,881,372,393.71
  5. Step 5: Solve for x
    x = 1,881,372,393.71/63,978.15
  6. Step 6: Final answer
    x = 29,406.48

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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.