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Finding the Fourth Proportional to 70,520.40, 105,706.80 and 23,757.12

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Solution

The fourth proportional to 70,520.40, 105,706.80 and 23,757.12 is: 35,610.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,520.40 : 105,706.80 = 23,757.12 : x
  2. Step 2: Convert to fraction form
    70,520.40/105,706.80 = 23,757.12/x
  3. Step 3: Cross multiply
    70,520.40x = 105,706.80 × 23,757.12
  4. Step 4: Simplify right side
    70,520.40x = 2,511,289,132.42
  5. Step 5: Solve for x
    x = 2,511,289,132.42/70,520.40
  6. Step 6: Final answer
    x = 35,610.82

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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.