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Finding the Fourth Proportional to 70,912.31, 106,381.10 and 23,530.24

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Solution

The fourth proportional to 70,912.31, 106,381.10 and 23,530.24 is: 35,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,912.31 : 106,381.10 = 23,530.24 : x
  2. Step 2: Convert to fraction form
    70,912.31/106,381.10 = 23,530.24/x
  3. Step 3: Cross multiply
    70,912.31x = 106,381.10 × 23,530.24
  4. Step 4: Simplify right side
    70,912.31x = 2,503,172,814.46
  5. Step 5: Solve for x
    x = 2,503,172,814.46/70,912.31
  6. Step 6: Final answer
    x = 35,299.55

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1.5x scale

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.