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Finding the Fourth Proportional to 35,912.70, 53,844.06 and 15,911.34

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Solution

The fourth proportional to 35,912.70, 53,844.06 and 15,911.34 is: 23,855.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,912.70 : 53,844.06 = 15,911.34 : x
  2. Step 2: Convert to fraction form
    35,912.70/53,844.06 = 15,911.34/x
  3. Step 3: Cross multiply
    35,912.70x = 53,844.06 × 15,911.34
  4. Step 4: Simplify right side
    35,912.70x = 856,730,876.42
  5. Step 5: Solve for x
    x = 856,730,876.42/35,912.70
  6. Step 6: Final answer
    x = 23,855.93

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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.