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Finding the Fourth Proportional to 41,985.75, 62,978.67 and 14,283.75

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Solution

The fourth proportional to 41,985.75, 62,978.67 and 14,283.75 is: 21,425.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,985.75 : 62,978.67 = 14,283.75 : x
  2. Step 2: Convert to fraction form
    41,985.75/62,978.67 = 14,283.75/x
  3. Step 3: Cross multiply
    41,985.75x = 62,978.67 × 14,283.75
  4. Step 4: Simplify right side
    41,985.75x = 899,571,577.61
  5. Step 5: Solve for x
    x = 899,571,577.61/41,985.75
  6. Step 6: Final answer
    x = 21,425.64

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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.