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Finding the Fourth Proportional to 35,433.70, 53,147.04 and 12,059.80

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Solution

The fourth proportional to 35,433.70, 53,147.04 and 12,059.80 is: 18,088.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,433.70 : 53,147.04 = 12,059.80 : x
  2. Step 2: Convert to fraction form
    35,433.70/53,147.04 = 12,059.80/x
  3. Step 3: Cross multiply
    35,433.70x = 53,147.04 × 12,059.80
  4. Step 4: Simplify right side
    35,433.70x = 640,942,672.99
  5. Step 5: Solve for x
    x = 640,942,672.99/35,433.70
  6. Step 6: Final answer
    x = 18,088.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.