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Finding the Fourth Proportional to 47,580.55, 65,665.17 and 26,361.79

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Solution

The fourth proportional to 47,580.55, 65,665.17 and 26,361.79 is: 36,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,580.55 : 65,665.17 = 26,361.79 : x
  2. Step 2: Convert to fraction form
    47,580.55/65,665.17 = 26,361.79/x
  3. Step 3: Cross multiply
    47,580.55x = 65,665.17 × 26,361.79
  4. Step 4: Simplify right side
    47,580.55x = 1,731,051,421.85
  5. Step 5: Solve for x
    x = 1,731,051,421.85/47,580.55
  6. Step 6: Final answer
    x = 36,381.49

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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.