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Finding the Fourth Proportional to 63,021.60, 94,575.60 and 27,986.40

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Solution

The fourth proportional to 63,021.60, 94,575.60 and 27,986.40 is: 41,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,021.60 : 94,575.60 = 27,986.40 : x
  2. Step 2: Convert to fraction form
    63,021.60/94,575.60 = 27,986.40/x
  3. Step 3: Cross multiply
    63,021.60x = 94,575.60 × 27,986.40
  4. Step 4: Simplify right side
    63,021.60x = 2,646,830,571.84
  5. Step 5: Solve for x
    x = 2,646,830,571.84/63,021.60
  6. Step 6: Final answer
    x = 41,998.78

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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.