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Finding the Fourth Proportional to 47,163.40, 65,085.90 and 25,653.32

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Solution

The fourth proportional to 47,163.40, 65,085.90 and 25,653.32 is: 35,401.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,163.40 : 65,085.90 = 25,653.32 : x
  2. Step 2: Convert to fraction form
    47,163.40/65,085.90 = 25,653.32/x
  3. Step 3: Cross multiply
    47,163.40x = 65,085.90 × 25,653.32
  4. Step 4: Simplify right side
    47,163.40x = 1,669,669,059.58
  5. Step 5: Solve for x
    x = 1,669,669,059.58/47,163.40
  6. Step 6: Final answer
    x = 35,401.80

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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.