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Finding the Fourth Proportional to 46,361.60, 63,978.94 and 25,140.86

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Solution

The fourth proportional to 46,361.60, 63,978.94 and 25,140.86 is: 34,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,361.60 : 63,978.94 = 25,140.86 : x
  2. Step 2: Convert to fraction form
    46,361.60/63,978.94 = 25,140.86/x
  3. Step 3: Cross multiply
    46,361.60x = 63,978.94 × 25,140.86
  4. Step 4: Simplify right side
    46,361.60x = 1,608,485,524.94
  5. Step 5: Solve for x
    x = 1,608,485,524.94/46,361.60
  6. Step 6: Final answer
    x = 34,694.35

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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.