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Finding the Fourth Proportional to 47,361.87, 65,354.72 and 26,139.76

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Solution

The fourth proportional to 47,361.87, 65,354.72 and 26,139.76 is: 36,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,361.87 : 65,354.72 = 26,139.76 : x
  2. Step 2: Convert to fraction form
    47,361.87/65,354.72 = 26,139.76/x
  3. Step 3: Cross multiply
    47,361.87x = 65,354.72 × 26,139.76
  4. Step 4: Simplify right side
    47,361.87x = 1,708,356,793.70
  5. Step 5: Solve for x
    x = 1,708,356,793.70/47,361.87
  6. Step 6: Final answer
    x = 36,070.30

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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.