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Finding the Fourth Proportional to 47,580.78, 65,661.42 and 26,361.42

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Solution

The fourth proportional to 47,580.78, 65,661.42 and 26,361.42 is: 36,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,580.78 : 65,661.42 = 26,361.42 : x
  2. Step 2: Convert to fraction form
    47,580.78/65,661.42 = 26,361.42/x
  3. Step 3: Cross multiply
    47,580.78x = 65,661.42 × 26,361.42
  4. Step 4: Simplify right side
    47,580.78x = 1,730,928,270.42
  5. Step 5: Solve for x
    x = 1,730,928,270.42/47,580.78
  6. Step 6: Final answer
    x = 36,378.73

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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.