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Finding the Fourth Proportional to 47,978.59, 66,197.64 and 46,086.84

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Solution

The fourth proportional to 47,978.59, 66,197.64 and 46,086.84 is: 63,587.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,978.59 : 66,197.64 = 46,086.84 : x
  2. Step 2: Convert to fraction form
    47,978.59/66,197.64 = 46,086.84/x
  3. Step 3: Cross multiply
    47,978.59x = 66,197.64 × 46,086.84
  4. Step 4: Simplify right side
    47,978.59x = 3,050,840,043.06
  5. Step 5: Solve for x
    x = 3,050,840,043.06/47,978.59
  6. Step 6: Final answer
    x = 63,587.53

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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.