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Finding the Fourth Proportional to 47,978.53, 66,210.18 and 26,469.61

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Solution

The fourth proportional to 47,978.53, 66,210.18 and 26,469.61 is: 36,527.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,978.53 : 66,210.18 = 26,469.61 : x
  2. Step 2: Convert to fraction form
    47,978.53/66,210.18 = 26,469.61/x
  3. Step 3: Cross multiply
    47,978.53x = 66,210.18 × 26,469.61
  4. Step 4: Simplify right side
    47,978.53x = 1,752,557,675.81
  5. Step 5: Solve for x
    x = 1,752,557,675.81/47,978.53
  6. Step 6: Final answer
    x = 36,527.96

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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.